Solid-state powerful femtosecond mid-IR laser sources based on Fe2+doped chalcogenides: advances and prospects

Авторы: Potemkin F.V., Frolov M.P., Gordienko V.M.
Сборник: IEEE Proceedings of International Conference Laser Optics (ICLO-2018)
Год издания: 2018
Место издания: IEEE
Первая страница: 33
DOI: 10.1109/LO.2018.8435793
Аннотация: Efficient chirped pulse amplification of broadband mid-IR (4-5 µm) femtosecond seed pulse (230 ps, 4µJ) generated in AgGaS 2 based OPA driven by Cr:forsterite laser in multi-pass Fe 2+ :ZnSe amplifier optically pumped by solid-state Q-switched Cr:Yb:Ho:YSGG laser (2.85 µm, 30mJ, 5Hz, 0.6 J/cm 2 ) has been demonstrated. The hybrid system delivers 2.1 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 10.5 GW. Further grating based and non-linear compression in a bulk CaF2 due to the SPM and anomalous GVD should provide the enhancement of peak power up to 35 GW. Possible routes to reach sub-TW and even TW power level in mid-IR are discussed.
Добавил в систему: Потёмкин Фёдор Викторович

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