TOPTICA’s TeraScan helps characterize next-generation terahertz detectors

Toptica: iChrome CLE Efficient and compact Four-color Laser Combiner: Multi Laser Engine for Biophotonics & Microscopy

TOPTICA's iChrome CLE is a compact laser engine that combines four laser lines in one box. All integrated colors are provided via one polarization-maintaining single-mode fiber. It is available with 405, 488, 561 and 640 nm and more than 20 mW guaranteed output power after the fiber each. The system guarantees a plug & play installation since it includes TOPTICA's proprietary COOL^AC automatic alignment technology.

Toptica Imaging Extension: Fast and Flexible Imaging Platform for Terahertz Pro

An accessory to the Toptica TeraFlash pro, the Toptica Imaging Extension utilizes two precise linear stages to scan a sample through the focus of the terahertz beam. The translational movement is synchronized with the shaker of the TeraFlash pro, resulting in a high measurement speed of up to 16 pixel/sec. A “basic” setup is available for researchers who wish to use their own optical components, and a “complete” version includes parabolic mirrors for beam shaping and focusing.

Toptica Teraflash Pro: Versatile time-domain terahertz platform

Toptica's 49 "Shades of Infrared": Successful implementation of a superconducting IR spectrometer

Toptica TOPO – Widely Tunable High-Power cw OPO Laser System: A Singly-resonant OPO Laser System for MIR Spectroscopy and Applications

TOPTICA's OPO laser system won the Prism Awards 2019 for scientific lasers at Photonics West!

IR spectroscopy has never been easier. The powerful TOPOfrom Toptica delivers wide tunability, narrow linewidth, and convenient hands-free digital control. There are no modules to exchange and no adjustments to be made by hand. Ease of use and reliable performance make this CW OPO the right choice for challenging applications in IR spectroscopy and quantum optics.

Toptica FemtoFiber ultra 920 – 920nm femtosecond laser for GFP and YFP imaging

920 nm High-power Ultrafast Erbium Fiber Laser System

The FemtoFiber ultra 920 is a new member of TOPTICA's third generation of ultrafast fiber lasers. The system delivers laser pulses of less than 100 fs in duration at a central wavelength of 920 nm. The system provides more than 1 W average output power. It is a compact femtosecond laser system with turnkey operation and cost-effective design.

Toptica FemtoFiber ultra 920 – 920nm femtosecond laser for GFP and YFP imaging

920 nm High-power Ultrafast Erbium Fiber Laser System

The FemtoFiber ultra 920 is a new member of TOPTICA's third generation of ultrafast fiber lasers. The system delivers laser pulses of less than 100 fs in duration at a central wavelength of 920 nm. The system provides more than 1 W average output power. It is a compact femtosecond laser system with turnkey operation and cost-effective design.

Toptica: UV / RBG Lasers

TOPTICA’s frequency-converted diode lasers reach deep-UV wavelengths as short as 190 nm. By providing essential wavelengths like 193 nm, 213 nm, 257 nm or 405 nm in pure cw-TEM00-mode quality, the DLC TA-SHG pro and DLC TA-FHG pro are ideal UV/RGB solutions for testing and inspection or advanced material processing, e.g. lithography patterning. In addition, white-light holography is served with our tunable solutions around 457 nm, 532 nm and 647 nm. The lasers provide more than enough power for each application. On top of that, they are much easier to handle at considerably lower operating costs.

Toptica TA-FHG pro High-power, tunable, frequency-quadrupled diode laser

The TA-FHG pro is a tunable, diode-based laser source in the deep UV spectral range. The system consists of an external cavity diode laser, a high power semiconductor amplifier (TA), and two cascaded second harmonic generation stages (SHG pro). Alternatively, it can be equipped with a fiber amplifier (FA) or Raman fiber amplifier (RFA). It provides tunable laser radiation for spectroscopy, laser cooling, holography and interferometry.

Toptica: 48 hours in the life of a DFC

TOPTICA’s Difference Frequency Comb DFC is compact, robust, high-end and convenient at the same time. This unique combination is demonstrated in our new DFC video: 48 hours in the life of a DFC.

The DFC is a compact, robust, high-end solution featuring turn-key operation in a 19 inch format. All driving and locking electronics for RF references are integrated into the robust 19-inch housing of the Erbium fiber based frequency comb DFC CORE. It features 4 or optionally 8 intrinsically offset-free (fCEO=0) outputs at 1560 nm which can be equipped with wavelength extension modules converting the comb light to any wavelength between 420 nm and 2200 nm.

Toptica: Multi-Laser Engine for Microscopy

The Topticamulti-laser engine iChrome CLE for biophotonics provides 405, 488, 561 and 640 nm with 20 mW at the end of the fiber. The cost-effective system is ideal for multi-color microscopy applications due to its compact design and economic operation. Even the 561 nm light is generated by a laser diode instead of a solid-state laser, allowing this system to be directly modulated at high speed (1 MHz) while maintaining complete-off, i.e. zero photons, in the dark state. The iChrome CLE is the latest member of TOPTICA’s iChrome product line which also includes the powerful iChrome MLE (up to 100 mW and four laser lines). All iChrome systems have a unified user interface, unique modulation features and COOLAC, TOPTICA’s proprietary and fully automated beam alignment algorithm guaranteeing consistent power out of the fiber.

Toptica BoosTA pro High-Power Tapered Laser Amplifier

The TopticaBoosTA pro, TOPTICA’s new stand-alone optical amplifier, increases the output power of a DL pro or any other linearly polarized master laser by up to 20 dB (x100). Following TOPTICA’s well-established pro-technology, the TA chip is mounted in a compact unit with optimized heat management and beam-shaping optics. A compact, external power supply (DC HP) drives the amplifier head and allows effortless operation - even of current-hungry TA chips at wavelengths with lower gain. Researchers thus benefit from output power levels up to 3.5 W.

The BoosTA pro head includes a high-bandwidth current modulation board, which – when used in a closed feedback loop – allows compensating power fluctuations of the master laser by adjusting the amplifier gain. The board also features a protective circuit to avoid the risk of electronic chip damage. The beam management of the seed laser can be greatly simplified by optional fiber input coupling. Other options are optical isolators and fiber output coupling. The BoosTA pro head has sufficient space for a 60 dB isolator to protect the TA chip from back reflections.

Toptica CTL: Continuously Tunable Laser

The Toptica CTLis the ultimate choice when looking for a laser that is widely tunable without any mode-hopping. It has high power, a narrow linewidth and high absolute and relative wavelength accuracy. Wide scans can be performed with highest resolution. With the fully digital, low noise and drift DLC pro controller, the CTL laser is easy to use and operate via touch-screen and knobs as well as via remote PC GUI and command language.

The new CTL lasers are ideally suited for applications that require large mode-hop free tuning ranges, such as the resonant excitation of small structures like quantum dots and micro-cavities. Also molecular spectroscopy and components testing will benefit from CTLs exceptional properties.

New publication using Toptica CTL Continuously Tunable Laser: Absolute frequency atlas from 915 nm to 985 nm

This result has been published in Journal of Molecular Spectroscopy in January 2018. 
See https://doi.org/10.1016/j.jms.2017.12.013 or http://arxiv.org/abs/1801.01342

High-resolution absorption spectroscopy of atoms and molecules is useful to improve models and for frequency calibration and stabilization. A continuous high-resolution measurement without any gaps or discontinuities requires widely mode-hop-free tunable lasers.

With TOPTICA's continuously tunable diode laser CTL, the absorption spectrum of iodine was recently recorded over the broad wavelength range between 915 and 985 nm. This high resolution measurement was performed in a single sweep and allows for providing an "iodine atlas" that contains almost 10,000 experimentally observed absorption lines with an uncertainty of only 50 MHz (corresponding to 0.0017 cm-1).

TOPTICA presents "All Wavelengths" at Photonics West

TOPTICA Photonics will present their latest innovations at Photonics West in Moscone Center, San Francisco from January 30th to February 1st.

This year, TOPTICA’s booth location moved to North Hall, booth #4645. Dedicated laser solutions for biophotonics will be presented at the BiOS exhibition on 27th and 28th January, booth 8508.

With their broad product portfolio, TOPTICA offers All Wavelengths! Complete coverage from deep-UV (190 nm) to terahertz radiation (0.1 THz, corresponding to 3 mm). These lasers support a multitude of applications in microscopy, materials metrology and quantum technology.

TOPTICA receives the laser guide star contract for ELT from ESO

Munich - December 18th: TOPTICAtoday signed an updated contract with the European Southern Observatory (ESO) for the production of four more lasers to be used in the adaptive optics system of the Extremely Large Telescope (ELT). The contract is an extension of a development and deployment contract for ESO’s Very Large Telescope (VLT) and will be executed by TOPTICA Projects GmbH, a recently started TOPTICA spin-off. These unique guide star laser systems have been extensively tested at one of the major ESO telescopes in Paranal, Chile for more than two years. They will be a key component of the new ELT telescope and will help to achieve an unprecedented spatial resolution for optical/infrared ground-based telescopes. The ELT is expected to see first light in 2024.

Toptica: Terahertz-Based Plastic Inspection

Many polymeric materials appear – more or less – transparent for terahertz radiation. Researchers and engineers have successfully exploited this behavior for contact-free analysis and non-destructive testing. For example, pulsed terahertz radiation can uncover the thickness of an object, using an "echolocation" technique: In reflection-mode measurements, terahertz pulses strike the object under test, and its front and back side each reflect a part of the incident pulse. The time-of-flight difference, i.e. the time elapsed between the arrivals of the pulse echoes from either side, is directly proportional to the optical thickness of the layer. The method still works if the object consists of several different layers, and TOPTICA's customers have resolved layers down to 10-20 µm, even in ternary and quaternary materials.

Toptica: From Quantum 1.0 to Quantum 2.0

Wilhelm Kaenders gave a “Visionary Speakers” talk on quantum science and business at FiO 2017.

Recently, Toptica's president Wilhelm Kaenders held a keynote presentation at the OSA Frontiers in Optics Conference in Washington about his vision of the future of quantum technology. He described the "small-company perspective" of the transition from laboratory-only experiments towards large projects with public interests. Read more in this article.

Toptica TeraScan Frequency-Domain Terahertz Platform

TOPTICA’sTeraScan platforms are well-established “TopSeller” configurations for frequency-domain terahertz spectroscopy. The systems combine mature DFB diode lasers with state-of-the-art GaAs or InGaAs photomixers. The TeraScan 780 offers an outstanding bandwidth, and the TeraScan 1550 sets new benchmarks in terms of terahertz power and dynamic range. Both systems feature TOPTICA's proprietary “DLC smart” control electronics.

Toptica TeraSpeed Superfast Terahertz Screening Platform

The TopticaTeraSpeed serves applications in quality control and process monitoring that require no spectral information, but call for terahertz intensity measurements at “extreme” speeds: the system is capable of detecting individual terahertz pulses at repetition rates as high as 100 MHz. An integrated data-processing unit converts the detected pulses to RMS values, enabling data streams at sampling rates up to 500 kHz – orders of magnitude faster than conventional terahertz systems. Bringing together several cutting-edge technologies, the TeraSpeed takes advantage of mature fiber laser technology, powerful photoconductive emitters and fast yet sensitive Schottky receivers.

Toptica DFC SEED Low-noise OPCPA seeder

The DFC SEED unit is dedicated for OPCPA and high power amplifier seeding that require phase-stable ultrashort laser pulses at 1560 nm and 1030 nm or 1950 nm. It combines an outstanding passive CEP stability which challenges the best Ti:sapph lasers with the convenience and robustness of a fiber laser. Long-term drifts of the CEP that are caused by a subsequent amplifier chain can be compensated through a dedicated feedback channel. The repetition rate frep of the DFC SEED can be synchronized to any appropriate reference.

Toptica DFC SDL Frequency-comb-stabilized laser system

TOPTICA's offset-free frequency comb DFC (Difference Frequency Comb) and tunable cw diode lasers (DL pro) can be combined into easy-to-use laser systems delivering frequency-stable cw-output at any wavelength between 420 nm and 2200 nm. A complete laser system contains a DFC CORE, wavelength extensions (DFC EXT), cw diode lasers (DL pro), beat units (DFC BC, DFC MD), all necessary stabilization electronics, a wavelength meter (High Finesse), RF-reference, counter, spectrum analyzer, control server (PC) and user software.

All these components can now be integrated into a single transportable 19-inch rack. The standard system comes with two frequency stable cw-outputs and all required accessories. The control software runs on an integrated PC acting as server, it can be operated remotely using the client GUI. The laser frequencies can be set manually within the comb extension and DL pro bandwidth and are displayed live by the software.

Toptica DFC CORE / DFC CORE+ Low-noise frequency comb

The CORE unit of TOPTICA’s Difference Frequency Comb (DFC) consists of a low noise mode-locked oscillator, a fiber-optic amplifier, a nonlinear fiber for supercontinuum generation, a CERO unit for difference frequency generation (DFG) and a fiber-optic pre-amplifier. The DFC CORE provides 4 or 8 fCEO-stabilized outputs at 1560 nm. Each output can seed a user-defined extension as specified on the DFC Extensions section. It comes with integrated radio frequency reference and dedicated frep locking electronics. A beat monitoring unit comprising a laptop and a digital scope with spectrum analyzer mode allows for convenient monitoring and analysis of locking beats.

Toptica Difference Frequency Comb (DFC) Inherently CEP-stable modular frequency combs

TOPTICA’s frequency comb product line is a modular system that supports a broad variety of applications. Three basic versions of the DFC are available: DFC CORE, DFC CORE+ and DFC SEED. All models use TOPTICA proprietary CERO-technology to achieve an unprecedented low-noise performance.

The DFC CORE and its high performance version DFC CORE+ come with a digital oscilloscope for beat monitoring and a GPS disciplined RF reference included. They both provide 4 or optionally 8 phase-stable outputs at 1560 nm.

Several extension modules are available that can convert the DFC CORE / DFC CORE+ outputs to any wavelength between 420 nm and 2200 nm. The extension modules can be upgraded at any time after purchase of the DFC CORE and are interchangeable between outputs.

In addition, beam combiner (DFC BC) and beat detector (DFC MD) units are available to provide RF beats between the DFC comb lines and cw lasers. The RF output signal of the DFC MD can be counted to determine the frequency of the cw laser. It also enables phase or frequency stabilization of the cw laser to the DFC using e.g. TOPTICA’s locking modules mFALC or DigiLock. In the DFC CORE+ version, the RF output signal can also be used to stabilize the DFC to the cw laser which serves as optical reference.

Such a DFC system can be combined with any of TOPTICA’s tunable diode lasers to achieve a complete, frequency referenced laser system including wavelength meter and counter all from one source.

Toptica Difference Frequency Comb (DFC) Inherently CEP-stable modular frequency combs

TOPTICA’s frequency comb product line is a modular system that supports a broad variety of applications. Three basic versions of the DFC are available: DFC CORE, DFC CORE+ and DFC SEED. All models use TOPTICA proprietary CERO-technology to achieve an unprecedented low-noise performance.

German quantum initiative QUTEGA starts with optical single ion clock

The German Federal Ministry of Education and Research (BMBF) has initiated a strategy process within the field of quantum technologies that stressed the importance of this field for economy and science in Germany. This assessment is in accordance with European and international evaluation. In order to implement first results of the strategy process, the BMBF has selected three pilot projects addressing important developments in quantum technologies. The first pilot project “optIclock - optical single ion clock” has started in May 2017.

Toptica Product Focus: Continuously Tunable Lasers

Wide mode-hop-free tuning is important for many exciting applications: for example resonant excitation of small structures like quantum dots and micro-cavities as well as molecular spectroscopy or components testing. TOPTICA is specialized in tunable diode lasers with excellent precision, reliability and ease-of-use.

For example, TOPTICA’s CTL – continuously tunable laser – enables mode-hop-free tuning of up to 110 nm at several central wavelengths. Wide scans can be performed with highest resolution and narrow linewidth, and CTL features high absolute and relative wavelength accuracy as well as high power.

In combination with its fully digital controller DLC pro, the CTL laser is easy to use and operate via touch-screen and knobs as well as via remote PC GUI and command language. The low noise and drift levels of the controller make the CTL series even more stable and lowest-noise.

Toptica FemtoFiber dichro midIR: Broadband mid-infrared femtosecond laser source

The new Toptica FemtoFiber dichro midIR represents an ideal laser source for mid-infrared spectroscopy and imaging. It provides a tunable broadband output in the wavelength range of 5 to 15 µm (20 - 60 THz, 670 - 2000 cm-1). The unique 400 cm-1 broad emission spectra allow to excite a wide range of materials at the same time.  The air-cooled system is based on TOPTICAs proprietary fiber laser technologies and includes a difference frequency generation (DFG) unit as well as all necessary electronics into the same box. All functions and features are computer controllable by Ethernet or USB interfaces.

Compact, convenient, cost-efficient: TOPTICA’s new iChrome CLE

TOPTICA’s new laser combiner engine iChrome CLE includes four laser sources in one compact box. It provides up to 20 mW of output power at 405, 488, 561 and 640 nm each. All integrated wavelengths are controllable via a unified user interface (analog and digital inputs, as well as RS232 and Ethernet). TOPTICA also provides a ready-to-use, user-friendly control software and a powerful command set for full OEM integration.The multi-laser system features unique modulation capabilities up to 1 MHz analog and digital modulation frequency. TOPTICA’s automated alignment procedure COOLAC guarantees a straightforward plug & play installation and an unsurpassed stability over the system’s lifetime.

Leibinger Innovation Prize for TOPTICA Guide Star Laser

Four units of TOPTICA’s laser guide star system “SodiumStar 20/2” project powerful orange beams into the air in Chile’s Atacama desert at the VLT. (Credit: ESO/F. Kamphues)

On September 9th 2016, TOPTICA’s guide star laser SodiumStar 20/2 was rewarded with the third place of the highly prestigious Laser Research Innovation Award presented by the Berthold Leibinger Stiftung. The “Guide Star Alliance”, consisting of TOPTICA Photonics AG (Germany), MPB Communications Inc. (Canada) and the European Southern Observatory (ESO), developed a novel high power laser system over a period of more than seven years serving as Guide Star for the Very Large Telescope (VLT) and other Large and Extremely Large Telescopes (ELT). This technology is a very long sought for key component for the construction of modern, earth-based telescopes and it has created already a large impact in the performance, reliability and maintenance of such high-tech devices.

Toptica: DLC pro Software Upgrade

TOPTICA is providing a free upgrade for DLC pro systems through a software update. The upgrade features a power stabilization feature for all types of supported lasers (DL pro, TA pro, SHG pro, CTL). Moreover, it provides access to the FFT (fast Fourier transform) display to DLC pro systems without the Locking Option.

ESO’s latest facility upgrade features four new TOPTICA guide star lasers on Cerro Paranal

Four units of TOPTICA’s laser guide star system “SodiumStar 20/2” project powerful orange beams into the air in Chile’s Atacama desert. Due to Rayleigh scattering, the SodiumStar laser beams are visible up to a height of a few tens of kilometres. When they enter the sodium layer at about 100 km altitude, they generate an artificial star used for adaptive optics correction.  

On April 26th, the impressive Four-Laser Guide Star Facility (4LGSF) was fully operational for the first time at the European Southern Observatory’s (ESO) Very Large Telescope (VLT) of the Paranal Observatory in Chile. During the preceding verification phase, a team of TOPTICA and ESO engineers successfully completed the required system tests. This is a major step towards the completion of the Adaptive Optics Facility (AOF) and evident proof of the capability of TOPTICA’s ground-breaking guide star solution.

Toptica: 2 W of high power tunable green-yellow lasers introduced

TOPTICA’s frequency-doubled diode lasers now reach 2 Watts output power at 560 nm wavelength with several nanometers tuning range, allowing to use diode laser-based technology around 560 nm with high power.

TOPTICA has released a new class of multi-Watt laser sources for use in the laboratory but also opening up opportunities for future OEM integration. Based on the TA-SHG pro product line, a resonantly frequency-doubled tapered amplified diode laser, more than 2 Watts of single frequency output covering the spectral range from 550 nm to 565 nm are now available. The dramatic leap towards higher power levels is possible due to proprietary tapered amplifier technology, modified electrical & thermal management and further improvements of the frequency-doubling resonator technology.

TOPTICA to present latest developments in high-end laser technology at BiOS/Photonics West

TOPTICA’s new frequency comb DFC is the ultimate choice for ultra-precise measurements and frequency referencing.  

New products to be shown at the Moscone Center in San Francisco from February 13th – 18th 2016 include ultra-stable diode lasers and powerful femtosecond fiber lasers, as well as frequency combs and terahertz systems. These systems enable a variety of demanding applications in biophotonics and microscopy, materials and test & measurement, in addition to quantum optics and spectroscopy.

Low-noise frequency combs with record stability

TOPTICA’s frequency comb DFC-CORE is the ultimate reference for optical frequencies and it convinces with completely new technology compared to previous systems. The DFC is now available in a compact one-box format including electronics. The fiber-based system uses difference frequency generation (DFG) to create an offset-free output at 1550 nm, and no active stabilization of the offset frequency is necessary. Due to this rock-solid passive operation, the DFC-CORE achieves an unprecedented low phase noise of less than 32 mrad in a spectral interferometry measurement. Consequently, when locked to an RF reference, its high stability results in an unrivaled deviation of less than 1x10-13 in one second. The DFC-CORE allows for complete frequency-stabilized laser systems, including the frequency comb, wavelength extensions and diode lasers referenced to the comb.

Reach high power levels with TOPTICA’s next generation femtosecond fiber lasers

TOPTICA’s FemtoFiber ultra NIR provides powerful femtosecond pulses of more than 500 mW and less than 150 fs at 780 nm.

The FemtoFiber ultra NIR from TOPTICA is a cost-effective, turnkey laser system that provides femtosecond laser pulses of more than 500 mW average power and an excellent beam quality. It is a powerful solution for applications in nonlinear microscopy like effective two-photon excitation of fluorescent proteins and SHG based contrast mechanisms, as well as micro-lithography. Experiments in fundamental physics will also benefit from the high output power of the laser. It provides pulses with a spectrum centered at 780 nm and a duration below 150 fs.

The system integrates a patented SESAM-mode-locked fiber-ring oscillator and a new high-power fiber amplifier. Polarization-maintaining, active fibers are used in order to maintain the highest reliability levels. Based on a fundamental wavelength of 1560 nm with a repetition rate of 80 MHz for oscillator and amplifier, the FemtoFiber ultra NIR uses a frequency-doubling stage, which converts the amplified output spectrum to 780 nm. Due to a highly efficient frequency-conversion process, more than 500 mW average power is available at 780 nm with a clean TEM00-mode free-space output.

Versatility makes the difference: Field-upgradeable eight-colour laser engine from Toptica

TOPTICA presents new iChrome SLE multi-laser engine for multi-color microscopy and other biophotonics applications.

When it comes to light sources for biophotonics, one has had to choose between stability and flexibility.  Even though home built breadboard solutions with standard laser modules enable flexibility, they are prone to misalignment and pose a challenge when integrated into a system as different lasers, AOTF’s and other components need to be controlled. In contrast, miniaturized fixed systems are stable, but lack many of the advanced features and the flexibility often needed for advanced biophotonics applications.

The new multi-laser engine iChrome SLE offers both stability and flexibility in one package. TOPTICA’s proprietary unmatched COOLAC self-alignment technology is integrated into this advanced platform - combining up to 8 laser wavelengths, fiber switching technology for SM/PM fibers, AOTF and direct diode modulation plus field serviceable laser cartridges. In addition, TOPTICA’s uniform interface makes integration into applications extremely user-friendly.

Toptica: Powerful femtosecond pulses at 1030 nm!

TOPTICA expands their portfolio of ultrafast fiber-based laser systems.

TOPTICA's new FemtoFiber pro SCYb provides laser pulses with a center wavelength of 1030 nm and a duration below 100 fs. The turnkey system delivers typically 700 mW average output power making it the ideal laser source for specific applications in nonlinear microscopy or terahertz generation.

The new, all-fiber high-power laser system is based on a very stable, SAM mode-locked Er-doped oscillator operating at 1560 nm. The oscillator output is frequency-shifted towards 1030 nm using a nonlinear fiber. Yb-doped fiber amplifiers level up the power to typically 700 mW at the laser output. The system also includes a small grating compressor unit to achieve transform-limited output pulses of typically 90-100 fs, with more than 70 % of the total power in the main peak. It operates at a repetition rate of 80 MHz and provides a TEM00-beam shape with M2<1.2 and a beam diameter of 2 mm.

Toptica Technical Note: Combination of femtosecond/picosecond fiber lasers and streak camera for ultrastable time-resolved photoluminescence spectroscopy

Fig.1: Experimental setup for time-resolved fluorescence spectroscopy. Beam paths of femtosecond exci-tation laser (red) and detection path (yellow) in orthogonal geometry.  

Time resolved fluorescence spectroscopy provides crucial insight into ultrafast processes in semiconductors, fluorescent biomolecules and organic compounds. In this application note we experimentally demonstrate this technique by using a combination of an ultrastable TOPTICA femtosecond fiber laser and a Hamamatsu streak camera to accurately derive the fluorescence decay constants of the dye IR 820 in different solvents. The system can be adapted easily to a broad spectral range by using frequency converted fiber lasers of the FemtoFiber pro series.

TOPTICA offers frequency combs - New offset-free comb technology enables unprecedented passive stability

The DFC uses CERO-technology to achieve a reliable and offset-free frequency comb with a passive frequency-offset stabilization.

Long lasting experience with ultrafast fiber lasers enables TOPTICA to introduce a completely new frequency comb to the market. The offset-free system DFC is based on patented technology that achieves an unprecedented passive stability. It is the smart solution for complex experiments requiring highest accuracy and reliability regarding optical frequencies.

TOPTICA’s difference frequency comb DFC operates with CERO technology (“zero-vCEO”) which obtains a phase-stable laser output with an inherently vanishing frequency offset. To achieve this, femtosecond laser pulses centered at 1560 nm are generated with a mode-locked Er3+-doped fiber-oscillator. Subsequent amplification and coherent spectral broadening of the pulses in a nonlinear fiber creates a broad supercontinuum.

Toptica at BiOS/Photonics West 2015: New ultrafast fiber lasers with multiple colors

The FemtoFiber dichro design bioMP provides synchronized sub-100 fs pulses at two different wavelengths.

A groundbreaking concept in ultrafast laser technology, the Toptica FemtoFiber dichro design bioMP, offers two perfectly synchronized laser beams at different wavelengths out of one box, emitted through the same aperture! This dual-color laser system provides pulses centered at 780 nm with above 100 mW and at 1030 nm with above 200 mW, both with durations below 100 fs – at a repetition rate of 80 MHz. Easy tuning of temporal and spatial overlap of both beams and all laser parameters can be conveniently accessed via remote control. Best of all? Everything is integrated into an ultra-compact alignment-free turnkey system!

Simultaneous live-cell multi-color two-photon imaging with two or three wavelengths and two-photon excitation of all conventional fluorescent markers are straightforward with the FemtoFiber dichro design bioMP. Adjustment of the delay between the two laser pulses enables a variation of the absorption modes. If the pulses have no temporal overlap, two identical photons excite one set of fluorophore independently. For overlapping pulses one photon of each color contributes to transitions centered around twice the energy of a photon with 888 nm. This scheme can be used to efficiently excite GFP and other fluorophores with a two-photon excitation maximum around 900 nm. 

Toptica DLC TA-SHG pro - Intelligent features and touch control

The digital DLC TA-SHG pro offers unprecedented convenience and best specifications for challenging experiments with frequency-converted tunable diode lasers.  

New conveniences for working with frequency-converted diode lasers!

TOPTICA’s latest DLC TA-SHG pro systems offer the lowest noise levels, narrowest linewidths and a simpler way to manage laser operation. Thanks to new, automated functions these systems revolutionize the daily work with frequency-converted lasers.

Intelligent, automated alignment features integrated directly into the laser head transform the work with lasers: With the push of a button, the AutoAlign option re-optimizes the SHG system output power by maximizing the coupling efficiency of the laser into the TA chip and the SHG resonator via built-in intelligence and servo-controlled flexure mirror mounts. The PowerLock option automatically compensates residual drifts caused by changing environmental conditions, offering unvarying stable laser output with constant power. Fiber-coupled systems using the FiberMon option can monitor the optical power coupled to the SHG output fiber. In combination with the FiberMon option, AutoAlign and PowerLock are also available for fiber-coupled systems.

New from Toptica: 100 nm of mode-hop free tuning!

TOPTICA introduces a new family of continuously tunable diode lasers

TOPTICA introduces a new family of diode lasers: the Continuously Tunable Lasers, CTL, for applications requiring a large mode-hop free tuning range with the best spectroscopic quality. The new family of CTL diode lasers permits mode-hop free tuning across the full gain spectrum of the integrated laser diode – while providing the highest resolution, narrow linewidth (< 100 kHz), renowned stability and ease-of-use of TOPTICA lasers. The first two versions of the CTL are available at 950 nm and 1570 nm, with continuous tuning from 915 – 985 nm and 1530 – 1620 nm, respectively. The single-mode TEM00 lasers provide an absolute wavelength accuracy of better than 100 pm, a repeatability better than 10 pm and output powers of up to 80 mW, more than twice the output power of comparable lasers.

Delivery of First TOPTICA Guide Star Laser Accepted by ESO

TOPTICA’s Laser Development Successfully Completed as Pathfinder for Future Extremely Large Telescopes (ELTs)

March 28, 2014: Over the course of the last three years, TOPTICA has developed a new generation of sodium guide star lasers to be deployed at ESO’s Adaptive Optics Facility at the Very Large Telescope (VLT) in Paranal, Chile. Until August 2014, TOPTICA will complete the delivery of four such lasers plus one spare unit to the European Southern Observatory (ESO), hoping for first light on the sky in Paranal in early 2015.

The newly developed laser systems consist of a narrow band and tun-able diode laser with 50 mW output power at 1178 nm, a Raman Fiber Amplifier stage developed by MPB Communications of Canada and a subsequent resonant frequency doubling stage. The output frequency is actively locked to a high resolution precision wavelength meter (HighFi-nesse GmbH). The work was performed under a multi-year ESO devel-opment contract using the ESO EFRA license for the amplifier step. 

Toptica: DL pro now with Digital Laser Controller DLC pro

With TOPTICA’s DLC pro, high-end laser control now enters the digital world! The new digital laser controller for TOPTICA’s tunable diode laser DL pro sets new benchmarks with regards to low noise and low drift levels. It provides intuitive touch control and powerful remote operation to run and frequency stabilize the laser. Never before was the use of tunable diode lasers, e.g. for demanding experiments in quantum optics and spectroscopy, so convenient.

Toptica 2013 BEC Awards

The Senior and Junior BEC Awards 2013 honor outstanding research in Experimental and/or Theoretical Physics of Quantum Degenerate Atomic Gases. The senior prize recognizes work that is firmly established and has significantly advanced the field of quantum degenerate gases. The Junior Prze recognizes outstanding work by a young scientist for independent research early in his or her academic career. Each prize consists of a 2,500 Euro cash award, and a certificate citing the contributions of the recipients. The prizes are awarded under the auspices of the biannual BEC conference and are sponsored by Toptica Photonics AG. Full details here.

Toptica TopMode: Better than a “Blue HeNe” High-Coherence, Single-Frequency OEM Lasers

TOPTICA’s new TopModediode lasers provide high-power, high-coherence mode-hop free operation. At blue-violet wavelengths, they achieve the highest single-frequency output power of any direct diode-based system while still operating as easily as a HeNe laser.

The TopMode lasers feature a spectral width of less than 5 MHz, translating into a coherence length greater than 25 m. TOPTICA’s proprietary CHARM (CoHerence-Advanced Regulation Method) technology actively stabilizes the lasers’ coherence and ensures continuous single-frequency operation.

CHARM eliminates mode-hops and prevents sudden step changes of the laser power or frequency. This results in an excellent stability of the diode laser and enables accurate measurements in demanding laser-based inspection and metrology tasks (e.g. interferometry, holography, scatterometry and Raman spectroscopy). Setting an industry record, the 405 nm TopMode offers as much as 100 mW output power. At the well-established HeNe wavelength of 633 nm, the corresponding model provides an output of 30 mW. Other available wavelengths are 445 nm, 515 nm, 488 nm and 685 nm. Users can choose between a free-beam output and optional fiber-coupling, realized with TOPTICA’s patented SmartDock™ coupler.

Toptica FemtoFErb 780: turnkey pulses with sub-100 fsec

FemtoFErb 780 – compact all-fiber laser with < 100 fs pulse width and > 50 mW at 780 nm.  

Most compact and cost effective ultrafast fiber laser for terahertz and biophotonics

TOPTICA’s new FemtoFErb 780, a turnkey laser system, delivers 50 mW average power at 780 nm center wavelength with a pulse duration of less than 100 fs at a repetition rate of 100 MHz. Based on polarization-maintaining Erbium-doped fibers and saturable absorber mirror (SAM) mode-locking technology, the all-fiber system features a compact SHG unit and comes with a free-beam output. Combining optics with the entire control electronics on a footprint of only 202 x 122 x 69 mm3 makes the FemtoFErb 780 the most compact fs-fiber laser commercially available. A perfect match for the requirements of time-domain terahertz, the FemtoFErb 780 also provides an ideal seeding source for Ti:Sapphire systems. In addition, this cost-effective replacement for bulky solid-state lasers suits various applications in biophotonics, ranging from SHG microscopy to multi-photon excitation.

Toptica DL pro HP: Powerful, tunable, single-frequency laser

The DL pro HP diode laser features a special resonator design, which allows for higher single-mode output powers from "visible" laser diodes. Manual coarse tuning of the wavelength is possible across the gain spectrum of the diode (for blue diodes approx.  2-3 nm) and mode-hop free fine tuning up to 50 GHz. Standard models are available at 405, 425 nm, and 633 nm; other wavelengths between 370 and 640 nm can be provided on request. The laser features various modulation inputs and includes an isolator. Fiber coupled versions are optionally available.

Toptica TeraFlash: Time-domain terahertz spectroscopy

TOPTICAintroduces the new TeraFlash system, a table-top platform for time-domain terahertz spectroscopy. The all-fibre design is based on mature 1.5 µm telecom technology, combining TOPTICA’s established femtosecond fibre lasers and state-of-the-art InGaAs antennas.

Using a highly precise delay stage, the TeraFlash achieves a peak dynamic range of more than 70 dB. Users can choose between a “precisescan” mode and a “fast scan” mode. In “precise scan” mode a bandwidth of 4 THz and a resolution better than 10 GHz are attained. Alternatively, in “fast scan” mode, a pulse trace is acquired in only 50 ms. The fibre-coupled antenna modules can be conveniently arranged, depending on the needs of the experiment. Integrated in the system is TOPTICA’s FemtoFErb 1560, the most compact ultrafast laser on the market. The SAM mode-locked fibre oscillator and the usage of polarization-maintaining fibres ensure a high robustness and alignment-free, “hands-off” operation. The TeraFlash system is a perfect solution for applications such as high-bandwidth spectroscopy (e.g. of explosives or liquid crystals) and industrial process control.

Toptica TeraFlash: Time-domain terahertz spectroscopy

TOPTICAintroduces the new TeraFlash system, a table-top platform for time-domain terahertz spectroscopy. The all-fibre design is based on mature 1.5 µm telecom technology, combining TOPTICA’s established femtosecond fibre lasers and state-of-the-art InGaAs antennas.

Using a highly precise delay stage, the TeraFlash achieves a peak dynamic range of more than 70 dB. Users can choose between a “precisescan” mode and a “fast scan” mode. In “precise scan” mode a bandwidth of 4 THz and a resolution better than 10 GHz are attained. Alternatively, in “fast scan” mode, a pulse trace is acquired in only 50 ms. The fibre-coupled antenna modules can be conveniently arranged, depending on the needs of the experiment. Integrated in the system is TOPTICA’s FemtoFErb 1560, the most compact ultrafast laser on the market. The SAM mode-locked fibre oscillator and the usage of polarization-maintaining fibres ensure a high robustness and alignment-free, “hands-off” operation. The TeraFlash system is a perfect solution for applications such as high-bandwidth spectroscopy (e.g. of explosives or liquid crystals) and industrial process control.

TOPTICA’s guide star laser unveiled to the public for the first time

ESO’s portable guide star laser unit in operation during field tests at the Allgäu Public Observatory (courtesy: Timm Kasper).  

The SodiumStar 20/2, a novel approach to guide star laser technology will be on display at the SPIE Astronomical Telescopes + Instrumentation conference in Amsterdam (July 1 to 4, 2012). This laser system was developed by TOPTICA jointly with the Canadian company MPB Communications and is based on the approach pursued by the laser group of the European Southern Observatory (ESO). A preproduction unit has successfully undergone extensive qualification testing (performance, lifetime, climate chamber: high and low temperature, altitude, EMC, transport climate, shock and vibration) to prove that it is able to cope with the harsh environmental conditions at its final destination at Cerro Paranal, Chile.

Toptica 2012: Lasers for Scientific Challenges

Toptica have released their all new 2012 "Lasers for Scientific Challenges" Catalogue. Download here.

Smart Ultrafast Fibre Lasers: Toptica presents compact next-generation fibre lasers

The FemtoFiber smart family is TOPTICA ’s new series of ultrafast fibre lasers. These systems are dedicated to applications ranging from biopho-tonics to terahertz generation and two-photon polymerization. Optimized for a compact footprint uniting optics and electronics in one box, these robust all-fibre lasers are the perfect choice for flexible OEM integration. 

Smart Ultrafast Fibre Lasers: Toptica presents compact next-generation fibre lasers

The FemtoFiber smart family is TOPTICA ’s new series of ultrafast fibre lasers. These systems are dedicated to applications ranging from biopho-tonics to terahertz generation and two-photon polymerization. Optimized for a compact footprint uniting optics and electronics in one box, these robust all-fibre lasers are the perfect choice for flexible OEM integration. 

Toptica sponsor new research awards

Dr. Ian Spielman and Prof. Gora Shlyapnikov honored for their 
contributions to the field of Bose-Einstein Condensation (BEC) 

During the Bose-Einstein Conference in Sant Feliu (Spain), Dr. Jürgen Stuhler (TOPTICA Photonics AG) presented the two BEC Awards 2011, to Prof. Gora Shlyapnikov (recipient of the Senior Award) and to Dr. Ian Spielman (recipient of the Junior award). The two prices honor “outstanding research in Experimental and/or Theoretical Physics of Quantum Degenerate Atomic Gases”. They are awarded biannually during the BEC Conference Series and are presented  to a Senior and a Junior academic leader in the field, selected by an independent international Jury. “TOPTICA sponsors the price in order to recognize the ever astonishing advances in the field of Quantum Degenerate Gases and the impact this has had on the development of our company”, Wilhelm Kaenders CEO of TOPTICA Photonics stated. “We stay committed to this exciting field of research also for the future and are proud to contribute with these newly founded awards.” 

Toptica release first commercial MOT kit

miniMOT – create your own laser cooled atomic cloud.

TOPTICA Photonics AG – key supplier of lasers, locking electronics and spectroscopy units for laser cooling experiments – have announced, in cooperation with ColdQuanta Inc., the release of the first commercial Magneto Optical Trap kit . A magneto-optical trap (MOT) – the most popular laser cooling and trapping setup – requires a vacuum system with optical access that contains the atomic species to be trapped and a magnetic quadrupole field. All this is now available in a compact setup. Together with narrow linewidth, frequency stabilized TOPTICA lasers (TA pro, DL pro, DL DFB), spectroscopy modules and locking electronics, a running MOT can easily be realized. Laser-cooled and trapped atoms are modern instruments for high precision measurements, fundamental research and student education.

Toptica iBeam Smart: now available at 515nm

TOPTICA presents direct diode technology at 515 nm . So far, the green wavelength regime has not been accessible directly with laser diodes. Integrated in TOPTICA’s OEM diode laser iBeam smart, the new wavelength was recently demonstrated live at Photonics West. Other newly available wavelengths are 395 nm (120 mW), 420 nm (120 mW) and 460 nm (100 mW). Furthermore high power versions of 445 nm (100 mW) and 473 nm (80 mW) are available starting now. These new wavelengths will be integrated in the iBeam smart, the new fiber-pigtailed diode laser iBeam smart PT and TOPTICA’s new multi laser engine, the iChrome MLE.

Next Generation THz from Toptica: Fast, compact and cost effective

TOPTICA presents new cw THz System with 1.5 µm lasers

At the recent Photonics West exhibition, TOPTICA Photonics presented the most compact frequency-domain terahertz spectrometer built to-date. The system combines TOPTICA’s new TeraBeam, a highly integrated twocolor diode laser, with newly developed InGaAs/InP emitter and detector technology (Fraunhofer Heinrich-Hertz Institute, Berlin, Germany).

The new cw THz system features a fast scan option, which reduces the acquisition times in cw THz spectroscopy by more than two orders of magnitude and acquires a complete THz spectrum (e.g. 50-1200 GHz, sub-GHz resolution) in less than a minute. Thus far, research in the field of frequency-domain (cw) terahertz has largely been carried out with GaAs photomixers, requiring laser wavelengths below 870 nm. Whilst excellent results in terms of bandwidth and signal quality have been obtained, the complexity of the optical source and a variety of non-standard optical components resulted in a price level inadequate for widespread industrial use.

TOPTICA presents ultrafast fiber laser with shortest commercially available pulse duration

TOPTICA is presenting a tunable “ultra compressed pulse” (UCP) model of the successful FemtoFiber pro series. The system provides a supercontinuum between 980 – 1400 nm and more than 30 mW output power. It features pulse durations even below 25 fs, the shortest one can get on the market from a modelocked fiber laser system. The system is ideally suited for biophotonics, pump-probe experiments or fs-spectroscopy.

Toptica: FemtoFErb – the most compact and cost effective laser source for THz generation

TOPTICA’s new FemtoFErb is a turnkey laser system providing 100 mW average power at 1560 nm and a pulse duration of less than 150 fs at 100 MHz repetition rate. Using the same compact platform as TOPTICA’s PicoFYb, the FemtoFErb is a robust all-fiber setup based on Erbium doped fiber and saturable absorber mirror mode-locking (SAM) technology. The compact system includes all necessary control electronics and is equipped with a direct polarization maintaining fiber output interface. The FemtoFErb is an ideal solution for Time-Domain Terahertz generation or for metrology applications allowing highest accuracy laser-based distance measurements.

Also recently released: The new FemtoFiber pro UCP provides a super-continuum between 980 – 1400 nm and more than 30 mW output power. It shows pulse durations even below 25 fs, the fastest one can get on the market from a turnkey SAM modelocked fiber laser system. The system is ideally suited for biophotonics, pump-probe experiments or fs?spectroscopy. The UCP option expands TOPTICA’s successful FemtoFiber proseries and will be live demonstrated at the forthcoming Ultrafast Phenomena conference exhibition.

Toptica competition iPad presented

Lastek's Andrew Gibson-White visitted Swinburne University's Centre for Atom Optics and Ultrafast Spectroscopy this week on behalf of Toptica. His pleasant task was to present Dr Chris Vale, the winner of Toptica's recent global competition, with his brand new iPad. Our photographer captured the moment when Andrew (above left) presented the iPad to Chris (right). Chris kindly thanked Toptica, and said he was "surprised, and very excited" to learn that his entry had been the one drawn out of the hundreds of entries received. Congratulations Chris!

Toptica awarded major contract for Sodium Guide Star Facility

Orange Laser Guide Star in operation at the Very Large Telescope VLT of ESO, on the top of mountain Cerro Paranal in Chile.

The Very Large Telescope (VLT) of the European Southern Observatory (ESO) at Paranal, Chile, will be equipped with four cw high power Laser Guide Stars on the basis of amplified and frequency-doubled diode laser systems. Narrow band and diffraction-limited laser light sources of more than 20 W exactly on Sodium resonance at 589 nm start a new phase at the European Southern Observatory. Against strong international competitors, TOPTICA won now the final development and supply contract which foresees a deployment of the lasers at the telescope in Sept 2013.

TOPTICA, drawing on its many years of experience in the field of narrow band and tunable diode laser, has joined forces with the Canadian company MPB Communications. A combination of a novel narrow-band Raman fiber amplifier approach at 1178 nm developed by MPBC subsequently is converted to 589 nm by resonantly enhanced frequency-doubling technology. Based on TOPTICA’s scientific product series, conversion efficiencies of more than 80 % have been demonstrated.

Toptica Laser Diodes

Specify your wavelength – Toptica can provide it.

TOPTICA offers a large variety of wavelength-selected single-mode laser diodes from stock. Among more standard laser diodes, you will find "pearls" such as 397 nm, 715 nm or 1120 nm right from our stocklist, wavelengths for which we are probably the only supplier in the world.

TOPTICA can integrate any diode from the stock lists into a tunable diode laser system, however, you can also purchase the diode separately. Each type of diode is carefully tested in an external cavity laser configuration with respect to coarse tuning range, mode-hop-free tuning range and power limits. The results are disclosed on request to the customer in a detailed datasheet.

In case you can still not match your wavelength of choice, call us – and chances are very high that we can provide it within very short time.

Nice price diodes are either diodes, that have been superseded by better diodes or that do not run nicely in ECDL setups. Nice price diodes will not be integrated into ECDLs by TOPTICA.

In these downloads you will find wavelengths, output powers and part numbers on our regularly updated stock lists. Give us a call and we will make a reservation for the particular diode of choice for you.

New: iChrome All-colour flexible ultrafast fibre laser

TOPTICA releases its newest fiber laser product – the iChromeTM: The historical fact “different laser colors require different lasers” is outdated. iChrome comes with the flexibility to set its wavelength anywhere in the visible range – computer controlled from 488 nm to 640 nm. The highly repetitive laser pulses exhibit 3 nm bandwith and 3.5 ps pulse duration with an average fiber coupled output power of more than 1.5 mW. The iChrome therefore is the natural choice for scientists that need an all-color flexible laser source with unprecedented hands-off functionality. This new laser product is industrial graded and well equipped with a fiber output that makes its connection to the experiment as simple as possible. No beam combiners are necessary to deliver all colors to the same spot – they just come out of the same fiber with single-mode quality (TEM00), diffraction limited divergence (M2 <1.1) and stable linear polarization (PER > 1:100).

Read more...

Toptica Scientific Diode Lasers

TOPTICA offers the widest wavelength coverage for diode lasers. The  Research Grade Diode Lasers cater to the vast majority of spectroscopic  applications in physics, chemistry and life sciences. Tunable single-mode and single-frequency lasers now cover wavelengths from 375 to 3000 nm. Spectral gaps and the deep UV regime down to 200 nm are closed by our frequency converted lasers (NLO series). Our industrial diode lasers combine first class diode technology and rock-solid opto-mechanical engineering, completed by convenient computer-control and intelligent protection measures - with record diode laser power at e.g. 405, 488 or 640 nm.

Toptica Photonics

TOPTICA is the world leader in diode laser and ultrafast fiber technology for industrial and scientific markets. Their products and capabilities also extend into optical data storage test and reference technology, biophotonics, microscopy, flow cytometry and THz generation. Browse all Toptica products on Lastek's website here.

Toptica Photonics

TOPTICA is the world leader in diode laser and ultrafast fiber technology for industrial and scientific markets. Their products and capabilities also extend into optical data storage test and reference technology, biophotonics, microscopy, flow cytometry and THz generation. Browse all Toptica products on Lastek's website here.

Toptica Femtosecond Fibre Lasers

Ultrafast fs and ps Fiber Lasers from Toptica

Next generation ultrafast fiber lasers for research and industry

 Toptica's growing range of next-generation ultrafast fiber lasers encompasses a broad selection of output power, wavelength range and timescale regimes. Click "read more" to see detailed matrix of available models.

Ultrafast Fiber Lasers

OEM-type

Toptica Femtosecond Fibre Lasers

Ultrafast fs and ps Fiber Lasers from Toptica

Next generation ultrafast fiber lasers for research and industry

 Toptica's growing range of next-generation ultrafast fiber lasers encompasses a broad selection of output power, wavelength range and timescale regimes. Click "read more" to see detailed matrix of available models.

Toptica Tunable Diode Lasers

TOPTICA introduced its first tunable diode laser systems in 1995. Ever since, we have been dedicated to stay ahead in terms of power, wavelength coverage and variety. We scan the market for available laser diodes and cooperate with numerous manufacturers to supply customized new wavelengths and powers. At present our laser diodes cover the range from 373 to 3000 nm with only few gaps and more wavelengths are continuously being added. In addition, well-equipped testing facilities for diode characterization and lifetime measurements ensure accurate specifications, reliable laser operation and constant high quality.

Toptica DL DFB: Tunable Distributed Feed-back Lasers

Distributed feedback (DFB) lasers offer wide frequency tuning and high output power in a compact, rugged setup. The frequency selective element – a Bragg grating – is integrated into the active section of the semiconductor and ensures single-frequency operation without any bulk optics. A wide variety of DFB diodes is available from stock; custom wavelengths can be provided even in low quantities.

Toptica DL Pro: Tunable diode laser with digital control DLC pro

Toptica's DL pro is the ultimate tunable diode laser. Its revolutionary mechanical design allows for both easy operation and extreme stability at the same time. It offers highest output powers, and optimized mode-hop-free tuning with a perfectly positioned virtual pivot point for the grating movement (Patents: DE 10 2007 028 499 and US 7970024). Together with the digital control DLC pro controller it shows unrivalled linewidth and drift – with the most comfortable and intuitive user interface. Also available with the economic SYST laser electronics. A software license may be purchased to enable frequency-locking features.

The DL pro HP diode laser features a special resonator design, which allows for higher single-mode output powers from "visible" laser diodes. Like the DL pro, it is an extended cavity diode laser (ECDL). Both lasers feature various modulation inputs and may be equipped with various options like fiber coupling, beam shaping etc. The lasers may also be driven by the economic Sys DC 110 laser control, however we highly recommend the DLC pro due the superior performance, especially for the DL pro HP lasers.

Toptica High Power, Amplified Laser Diodes

In the past, the output of semiconductor lasers was limited and insufficient for a variety of applications. The facets of single-mode laser diodes (typically 1 x 3 ìm) suffer optical damage at high power levels, whereas with larger facets the desired spatial mode properties cannot be maintained. Powerful tunable CW light could thus only be generated with vast solid-state lasers or dye ring laser systems alongside with expensive pump sources.

TOPTICA managed to overcome these limitations with the development of the tapered amplifier TA 100. This laser system, introduced in 1998, offers not only high power, but also excellent beam quality and an extremely narrow linewidth. Researchers further benefit from convenient tunability, lowest operational costs and long lifetimes.

Toptica BoosTA Semiconductor Laser Amplifier

Toptica Frequency Converted Laser Diodes

Impressive though the success story of semiconductor lasers has been, there are still several spectral "gaps", wavelengths that cannot be directly accessed with laser diodes. However, nonlinear frequency conversion techniques can be employed to generate tunable laser radiation in the UV, blue and green spectral range. TOPTICA offers state-of-the-art laser systems based on second harmonic generation (SHG), sum frequency generation (SFG) and fourth harmonic generation (FHG).

Toptica SHG pro Stand-Alone Second Harmonic Generator Module

The SHG pro is the device of choice if existing lasers are to be frequency doubled. Designed in TOPTICA’s pro technology, it unites highly stable performance and convenient operation. Mirror and crystal holders can be adjusted without opening the resonator cover. A wide range of non-linear crystals covers SHG wavelengths from 205 to 800 nm.  TOPTICA offers competent support for adapting the unit to customer requirements.

Toptica TA / FA SHG pro Frequency Doubled, High Power Tunable Diode Laser

 

The Toptica TA / FA SHG pro system comprises a tunable, grating-stabilized diode laser, a high power semiconductor (TA) or fiber (FA) amplifier, and an integrated frequency doubling stage (SHG pro). The SHG stage is a folded ring cavity in bow-tie configuration with excellent thermal and mechanical stability. The system provides tunable laser radiation for spectroscopy, laser cooling, optical data storage, holography and interferometry.