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

 toptica iChrome SLE

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.

The iChrome SLE offers up to eight different wavelengths from a broad range (405 - 640 nm) and up to 70 mW per color out of the fiber. Each laser source is housed in an individual, field exchangeable cartridge. The integrated fiber switch enables fast switching of all colors between two SM/PM fibers within less than 10 ms. Thus, the iChrome SLE supports multi-color applications that require separate microscope input ports (for example FRAP, TIRF, Confocal Microscopy / Spinning Disk). It can also be used for advanced scientific setups where one laser engine is used to drive different devices without the need to swap fibers.

toptica iChrome SLE laser cartridge

Each color of the iChrome SLE is housed inside an individual laser cartridge that can be replaced “in the field”.  

A uniform user interface controls all integrated laser sources of the iChrome SLE, making all lasers appear equal to the user, no matter what the technology behind the laser source may be (DPSS or diode laser). Customers can choose from a variety of interfaces: USB, RS232, Ethernet, analog and digital ports. The microprocessor-controlled system enables flexible OEM integration into systems such as microscopes or flow cytometers for demanding cell biology applications requiring multiple wavelengths, while high-speed analog and digital modulation with up to 250 kHz allows fast switching of laser wavelengths and intensities.

Additional unique features turn the system into a true and advanced OEM solution for demanding multi-color applications. TOPTICA’s COOLAC technology automatically aligns the system at the push of a button and eliminates the need for manual readjustments, guaranteeing true plug and play capability, push-button installation and exceptional long-term operational stability - even a replaced laser cartridge aligns automatically.

toptica iChrome SLE two fibers

Two SM/PM fibers enable unique flexibility that supports a multitude of applications.  

Because of its’ versatility, the iChrome SLE is an excellent tool for ever demanding tasks in biophotonics, wherein customers benefit from convenient field-exchangeable/upgradable laser modules, eliminating any lengthy system down-time.

The iChrome SLE is TOPTICA’s second generation of multi laser systems. In 2010, the first fully integrated multi laser system iChrome MLE was introduced - providing four different colors from one fiber. Easy to use and outstanding performance, this system gained high popularity in various biophotonics applications. Building on the success of the iChrome MLE, TOPTICA pursued the development of an even better multi laser engine. Implementing valuable customer feedback and state-of-the-art technology the new iChrome SLE was created.

Specifications:

  • Up to 8 colors (diode or DPSS sources)
  • Available wavelengths: 405, 420, 445, 460, 473, 488, 505, 515, 532, 561, 568, 594, 640 nm
  • Up to 70 mW per individual wavelength
  • Power Stability; ± 2% drift over 24 h @ room temperature +/- 3 °C
  • RMS Noise: < 1 % (10 Hz - 10 MHz)
  • Fiber Output Connector: FC/AFC (8° angled), FC/PC, FC/APC others on request
  • Max. Fiber Length: 2 m
  • Fiber Switching Speed: < 10 ms
  • Max. Modulation Frequency: 250 kHz for each color
  • Rise/Fall Time (10% - 90 %): 1,5 µs
  • Dimensions Laser Head (L x W x H): 500 x 370 x 140 mm³
  • Weight: ~21 kg
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