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Er:YAG, Er:Cr:YSGG and Ho:Yb:Cr:YSGG lasers with high power diode pumping
V. P. Mitrokhina, A. D. Savvina, V. A. Simonovaa, A. A. Sirotkinb, K. N. Firsovb, A. E. Dormidonova a Dukhov Automatics Research Institute (VNIIA), Moscow
b Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
Abstract:
We study the oscillation of three-micron lasers based on Er3+:YAG, Er3+:Cr3+:YSGG, and Ho3+:Yb3+:Cr3+:YSGG crystals under optical pumping by pulsed diode arrays with a total peak power of up to 15 kW at a wavelength of 970 nm and a pulse repetition rate of up to 50 Hz. In a diode-pumped Er3+:Cr3+:YSGG laser, the maximum output energy of more than 0.8 J was achieved for the first time in the free lasing regime. In the case of active Q-switching, the peak power of the output laser pulses with a duration of 55 ns exceeded 1 MW with an energy stability (standard deviation) of less than 3 %. Using the developed laser systems as sources for stable pulsed pumping of a Fе2+:ZnSe single-crystal laser with a short optical cavity, pulses with a duration of less than 2 ns at a wavelength in the vicinity of 4.3 μm were obtained.
Keywords:
Er3+:YAG, Er3+:Cr3+:YSGG, Ho3+:Yb3+:Cr3+:YSGG, Fе2+:ZnSe crystals, diode pumping, solid-state laser, mid-IR range.
Received: 07.04.2022
Citation:
V. P. Mitrokhin, A. D. Savvin, V. A. Simonova, A. A. Sirotkin, K. N. Firsov, A. E. Dormidonov, “Er:YAG, Er:Cr:YSGG and Ho:Yb:Cr:YSGG lasers with high power diode pumping”, Kvantovaya Elektronika, 52:7 (2022), 597–603
Linking options:
https://www.mathnet.ru/eng/qe18087 https://www.mathnet.ru/eng/qe/v52/i7/p597
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