1800 - 2400 nm OPCPA based on BiBO with signal-to-idler conversion by transient stimulated Raman chirped pulse amplification

Augustinas Petrulėnas; Paulius Mackonis; Aleksej M. Rodin

doi:10.1117/12.2599950

12 September 2021 1800 - 2400 nm OPCPA based on BiBO with signal-to-idler conversion by transient stimulated Raman chirped pulse amplification

Augustinas Petrulėnas, Paulius Mackonis, Aleksej M. Rodin

Author Affiliations +

Proceedings Volume 11867, Technologies for Optical Countermeasures XVIII and High-Power Lasers: Technology and Systems, Platforms, Effects V; 118670L (2021) https://doi.org/10.1117/12.2599950
Event: SPIE Security + Defence, 2021, Online Only

Abstract

We are demonstrating a BiBO crystal based three-stage OPCPA operating in the SWIR wavelength range from ~1800 nm to ~2000 nm for signal and from ~2100 nm to ~2400 nm for idler. This OPCPA was seeded with supercontinuum pulses from a 130 mm YAG crystal. Both the OPCPA and supercontinuum were pumped by transform-limited ~1.2 ps pulses from a Yb:YAG chirped pulse amplifier. In the second stage, a signal energy of ~220 μJ was achieved with a conversion efficiency of 10%, and the signal energy in the third stage exceeded 1 mJ, which corresponds to a conversion efficiency of 19%. Subsequently, the signal-to-idler energy transfer with efficiency of 20% was achieved by Transient Stimulated Raman Chirped-Pulse Amplification in a KGW crystal 30 mm long. Preliminary results were obtained on the compression of the amplified pulse. The laser will be used for remote detection of hazardous gases.

Conference Presentation

Citation Download Citation

Augustinas Petrulėnas, Paulius Mackonis, and Aleksej M. Rodin "1800 - 2400 nm OPCPA based on BiBO with signal-to-idler conversion by transient stimulated Raman chirped pulse amplification", Proc. SPIE 11867, Technologies for Optical Countermeasures XVIII and High-Power Lasers: Technology and Systems, Platforms, Effects V, 118670L (12 September 2021); https://doi.org/10.1117/12.2599950

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