High repetition rate passively Q-switched microchip laser at 1.5 μm

Kexiong Sun; Xiuquan Ma

doi:10.1117/12.2690176

17 August 2023 High repetition rate passively Q-switched microchip laser at 1.5 μm

Kexiong Sun, Xiuquan Ma

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 127571Q (2023) https://doi.org/10.1117/12.2690176
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

We demonstrate a passively Q-switched Er:Yb:YAl₃(BO₃)₄ microchip laser with Co²⁺:MgAl₂O₄ as saturable absorber (SA). As the 976 nm pump light double passes the Er:Yb:YAl₃(BO₃)₄ crystal, stable Q-switched operation is obtained at a low threshold pump power of 1.1 W. In addition to this, with the help of sapphire crystal for heat dissipation, together with high initial transmission of SA and low transmission of output coupler, the microchip laser generates pulses at 1.5 μm with a maximum repetition rate of 205 kHz, pulse with of 9.8 ns and average output power of 1.04 W under CW pumping.

Citation Download Citation

Kexiong Sun and Xiuquan Ma "High repetition rate passively Q-switched microchip laser at 1.5 μm", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 127571Q (17 August 2023); https://doi.org/10.1117/12.2690176

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