Ekspla's PhotoSonus T series tunable laser seamlessly integrates in a compact housing a nanosecond optical parametric oscillator and Nd:YAG Q-switched laser.

Three models with different output pulse energy values and different repetition rates are offered. The most powerful model has more than 230 mJ pulse energy. Narrow linewidth (<10 cm⁻¹) is nearly constant trough almost whole tuning range, which makes laser suitable for many spectroscopy application.

The device is controlled from the remote keypad or PC using LabVIEW™ drivers that are supplied with the system. The remote pad features a backlit display that is easy to read even while wearing laser safety glasses.

System is designed for easy and cost-effective maintenance. Replacement of flashlamps can be done without misalignment of the laser cavity and deterioration of laser performance. OPO pump energy monitoring system helps to increase lifetime of the optical components.

Download EKSPLA's 2023 Product Catalogue below:


  • Optional items are available allowing optimization of the laser system for Your application, for example:
  • Fiber bundle coupled output;
  • Energy meter;
  • Efficient second harmonic generator for 330 – 660 nm range;
  • Pulse energy attenuator;
  • Water-air cooled power supply.
  • Please inquire custom-build versions and options.


  • Integrated OPO system
  • Automated wavelength tuning from 330 to 2600 nm
  • Up to 230 mJ in range 660 – 2600 nm
  • 3 – 5 ns pulse duration
  • Features & Applications


  • Hands-free, automated wavelength tuning from 330 to 2600 nm
  • Ultra-wide OPO signal tuning range from 660 to 1320 nm
  • Up to 230 mJ in range 660 – 2600 nm, 35 mJ in range 330 – 660 nm
  • Narrow linewidth across tuning range
  • 3 – 5 ns pulse duration
  • Remote control via key pad or PC
  • Separate output port for 532 nm beam. Output for 1064 nm is optional
  • OPO pump energy monitoring
  • Fast Wavelength Switching within entire Signal or Idler ranges
  • Photoacoustic imaging
  • Flash photolysis
  • Photobiology
  • Remote sensing
  • Non-linear spectroscopy


  • High pulse energy (up to 230 mJ) is highly beneficial for photoacoustics imaging applications
  • Superior tuning resolution (1 – 2 cm⁻¹) allows recording of high quality spectra
  • High integration level saves valuable space in the laboratory
  • Flashlamps replacement without misalignment of the laser cavity saves on maintenance costs
  • In-house design and manufacturing of complete systems, including pump lasers, guarantees on-time warranty and post warranty services and spares supply
  • Variety of control interfaces: USB, RS232, optional LAN and WLAN ensures easy control and integration with other equipment
  • Attenuator and fiber bundle coupling options facilitate incorporation of PhotoSonus T systems into various experimental environments

Lasers, Light & other EM Sources