Millijoule femtosecond Tm:YAP regenerative amplifier for driving ultrabroad band collinear mid-infrared optical parametric amplifiers

Takao Fuji

doi:10.1117/12.2644347

28 December 2022 Millijoule femtosecond Tm:YAP regenerative amplifier for driving ultrabroad band collinear mid-infrared optical parametric amplifiers

Takao Fuji

Author Affiliations +

Proceedings Volume 12310, Advanced Lasers, High-Power Lasers, and Applications XIII; 1231008 (2022) https://doi.org/10.1117/12.2644347
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

Generation of 265-fs millijoule pulses at 1940 nm from a solid-state regenerative amplifier has been demonstrated. The system consists of a thulium-doped fluoride (Tm:ZBLAN) fiber oscillator, a two stage Tm:ZBLAN fiber preamplifier, and a regenerative amplifier with a thermoelectrically cooled thulium-doped yttrium aluminium perovskite crystal. The newly developed light source is used for pumping an ultra broadband mid-infrared optical parametric amplifier based on a gallium selenide crystal. The 2.5–4 μm range of a multioctave supercontinuum, generated in a polarization-maintaining ZBALN fiber, is used as the MIR seed. The amplified signal in combination with the corresponding idler pulses spread from 2.5 to 10 μm in a collinear geometry.

Conference Presentation

Citation Download Citation

Takao Fuji "Millijoule femtosecond Tm:YAP regenerative amplifier for driving ultrabroad band collinear mid-infrared optical parametric amplifiers", Proc. SPIE 12310, Advanced Lasers, High-Power Lasers, and Applications XIII, 1231008 (28 December 2022); https://doi.org/10.1117/12.2644347

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