VIS-to-NIR multiple output sub-TW class modular laser based on OPCPA and TSRCPA

Paulius Mackonis; Augustinas Petrulenas; Aleksej M. Rodin; Vytenis Girdauskas

doi:10.1117/12.2577089

5 March 2021 VIS-to-NIR multiple output sub-TW class modular laser based on OPCPA and TSRCPA

Paulius Mackonis, Augustinas Petrulenas, Aleksej M. Rodin, Vytenis Girdauskas

Proceedings Volume 11664, Solid State Lasers XXX: Technology and Devices; 116640N (2021) https://doi.org/10.1117/12.2577089
Event: SPIE LASE, 2021, Online Only

Abstract

We describe sub-TW class modular laser with multiple outputs in the visible and near-infrared wavelength range based on Optical Parametric Chirped Pulse Amplification (OPCPA) and Transient Stimulated Raman Chirped Pulse Amplification (TSRCPA). It provides 1.2 ps pulses with an energy of ~20 mJ at 1030 nm from two-stage double-pass Yb:YAG chirped pulse amplifier; ~20 fs pulses with an energy of <2 mJ at a central wavelength of 790 nm from OPCPA and 145 fs pulses with an energy of 0.6 mJ at a central wavelength of 1135 nm from TSRCPA. White light supercontinuum extending from 500 nm to 2300 nm in the YAG was used for seeding both a three-stage OPCPA based on BBO and a two-stage TSRCPA based on KGW crystals. The wide OPCPA bandwidth was maintained by the temporal shaping of pump pulses. We demonstrate the expansion of the spectrum of pulses amplified in the TSRCPA by ~10 times in comparison with the spectral bandwidth of the pump pulses. A maximum conversion efficiency of 55% was achieved in the second TSRCPA stage. The amplified pulses after compression were more than 8 times shorter than the pump pulses.

Conference Presentation

Citation Download Citation

Paulius Mackonis, Augustinas Petrulenas, Aleksej M. Rodin, and Vytenis Girdauskas "VIS-to-NIR multiple output sub-TW class modular laser based on OPCPA and TSRCPA", Proc. SPIE 11664, Solid State Lasers XXX: Technology and Devices, 116640N (5 March 2021); https://doi.org/10.1117/12.2577089

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