Gigawatt mid-IR (4-5 μm) femtosecond hybrid Fe2+:ZnSe laser system

F. V. Potemkin; E. A. Migal; A. V. Pushkin; B. G. Bravy; A. A. Sirotkin; V. I. Kozlovsky; Yu. V. Korostelin; Yu. P. Podmar’kov; V. V. Firsov; M. P. Frolov; V. M. Gordienko

doi:10.1117/12.2265721

11 May 2017 Gigawatt mid-IR (4-5 μm) femtosecond hybrid Fe²⁺:ZnSe laser system

F. V. Potemkin, E. A. Migal, A. V. Pushkin, B. G. Bravy, A. A. Sirotkin, V. I. Kozlovsky, Yu. V. Korostelin, Yu. P. Podmar’kov, V. V. Firsov, M. P. Frolov, V. M. Gordienko

Author Affiliations +

Proceedings Volume 10238, High-Power, High-Energy, and High-Intensity Laser Technology III; 102380L (2017) https://doi.org/10.1117/12.2265721
Event: SPIE Optics + Optoelectronics, 2017, Prague, Czech Republic

Abstract

We demonstrate a first-of-its-kind efficient chirped pulse amplification of broadband mid-IR (4-5 μm) femtosecond seed pulse (230 ps, 4μJ) generated in AgGaS2 based OPA driven by Cr:forsterite laser in multi-pass Fe2+:ZnSe amplifier optically pumped by solid-state Q-switched Cr:Yb:Ho:YSGG laser (2.85 μm, 30mJ, 5Hz, 0.6 J/cm2). The system delivers 1.2 mJ at pulse duration of 230 ps. Straightforward compression to 150 fs pulse is achievable with 70% efficiency using diffraction grating pair with peak power of about 6 GW. Further non-linear compression in a bulk CaF2 due to the SPM and anomalous GVD should provide the enhancement of peak power up to 20 GW. Possible routes to reach sub-TW and even TW power level in mid-IR are discussed.

Conference Presentation

Citation Download Citation

F. V. Potemkin, E. A. Migal, A. V. Pushkin, B. G. Bravy, A. A. Sirotkin, V. I. Kozlovsky, Yu. V. Korostelin, Yu. P. Podmar’kov, V. V. Firsov, M. P. Frolov, and V. M. Gordienko "Gigawatt mid-IR (4-5 μm) femtosecond hybrid Fe²⁺:ZnSe laser system", Proc. SPIE 10238, High-Power, High-Energy, and High-Intensity Laser Technology III, 102380L (11 May 2017); https://doi.org/10.1117/12.2265721

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