13 April 2011

High Q Laser presents the newest generation of ultra-compact femto- and picosecond seed oscillators - femtoTRAIN UC and picoTRAIN UC

With the TRAIN™ UC (ultra compact) product line an assortment of extremely compact and industry-compatible ultrafast oscillators are available for a wide range of applications at a very attractive price.

The femtoTRAIN™ UC offers femtosecond light pulses with a duration of <200 fs at a repetition rate of 63 MHz and an average power of more than 200 mW. It is available at fixed center wavelengths of 1040, 1053 and 1060 nm, respectively. The picosecond version picoTRAIN™ UC offers a pulse duration of 5 or 7 ps, based on the laser medium Yb:Crystal, Yb:Glass and Nd:Glass, respectively, and an average power of > 500 mW. The TRAIN™ UC oscillators can be extended with harmonics modules for generation of visible and UV light.

The TRAIN™ UC line incorporates, at a footprint of only 12 cm by 20 cm (9.6 cm height), an ultrafast resonator and pump diode in one monolithic housing. No external pump laser is needed and the laser can be easily used for your application. A saturable absorber mirror (SESAM) assures passive and self-starting mode locking, offering a robust and stable system delivering near transform limited light pulses.

The TRAIN™ UC oscillators are designed for high stability and compactness. The pump diodes are operated with “de-rated” nominal pump current for longest MTBF and are based on High Q Laser’s patented resonator folding technique withstanding a 50 g shock test. The oscillators comprise industrial mirror mounts showing no degrees of freedom, which are optimized by finite element methods. A recirculation cooling circuit through the massive ground plate is giving thermal stabilization of the housing. The laser is completely manufactured in class 100 clean room environment and is sealed off. All those techniques result in an exceptional spatial and temporal stability of the laser output beam.

The ultrafast oscillator can be used for a wide range of applications such as seeding, multiphoton microscopy, THz generation, Two-photon polymerisation, second/third harmonic microscopy, fluorescence lifetime imaging or Spectroscopy.

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