Cost-effective femtosecond laser source at 1800-3400 nm wavelengths based on multistage nonlinear conversion

Augustinas Petrulėnas; Paulius Mackonis; Aleksej M. Rodin; Augustė Černeckytė

doi:10.1117/12.2614994

30 May 2022 Cost-effective femtosecond laser source at 1800-3400 nm wavelengths based on multistage nonlinear conversion

Augustinas Petrulėnas, Paulius Mackonis, Aleksej M. Rodin, Augustė Černeckytė

Author Affiliations +

Proceedings Volume 12092, Laser Technology for Defense and Security XVII; 1209204 (2022) https://doi.org/10.1117/12.2614994
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

We present the concept of a cost-effective broadband SWIR-MIR mJ-level femtosecond laser source for hazardous gas detection by LIDAR based on multi-stage nonlinear conversion in readily available media. Developed affordable laser based on Yb:YAG rods with >10 mJ, ~1.2 ps output pulses at 1030 nm pump 3-stage OPCPA based on BiBO and simultaneously excite a supercontinuum in YAG for its seed. Output pulses amplified to >2 mJ in the wavelength range 1800 – 2400 nm with a pump-to-signal OPCPA conversion efficiency of ~30% after compression to <100 fs are used to generate rotational SRS in compressed nitrogen, hydrogen, or their mixtures to expand the spectrum beyond 3400 nm, limited by the spectrometer used.

Conference Presentation

Citation Download Citation

Augustinas Petrulėnas, Paulius Mackonis, Aleksej M. Rodin, and Augustė Černeckytė "Cost-effective femtosecond laser source at 1800-3400 nm wavelengths based on multistage nonlinear conversion", Proc. SPIE 12092, Laser Technology for Defense and Security XVII, 1209204 (30 May 2022); https://doi.org/10.1117/12.2614994

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