A wide temperature range miniaturization eye-safe laser

Guo Meng; Hui Yongling; Zhang Yulu; Jiang Menghua; Lei Hong; Li Qiang

doi:10.11884/HPLPB201527.041019

Volume 27 Issue 04

Mar. 2015

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Article Navigation > High Power Laser and Particle Beams > 2015 > 27(04): 041019

Liu Jiao, Yan Liping, Li Bin, et al. Artificial neural network modeling of component nonlinear behavior and application in conducted interference analysis[J]. High Power Laser and Particle Beams, 2015, 27: 103212. doi: 10.11884/HPLPB201527.103212

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Guo Meng, Hui Yongling, Zhang Yulu, et al. A wide temperature range miniaturization eye-safe laser[J]. High Power Laser and Particle Beams, 2015, 27: 041019. doi: 10.11884/HPLPB201527.041019

Citation:

Guo Meng, Hui Yongling, Zhang Yulu, et al. A wide temperature range miniaturization eye-safe laser[J]. High Power Laser and Particle Beams, 2015, 27: 041019. doi: 10.11884/HPLPB201527.041019

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A wide temperature range miniaturization eye-safe laser

doi: 10.11884/HPLPB201527.041019

1.
Institute of Laser Engineering,Beijing University of Technology,Beijing 100124,China

Received Date: 2014-12-10
Rev Recd Date: 2015-01-26
Publish Date: 2015-03-23

Abstract

Abstract

A miniaturized, eye-safe laser with wide adaptive temperature is reported. Er3+, Yb3+ co-doped phosphate glass is used as the gain medium. A Co2+: MgAl2O4 crystal is used as the saturable absorber. The miniaturized laser structure suitable for wide temperature range and the output characteristics of the passively Q-switched laser are investigated. The pump energy of 9 mJ, repetition frequency of 10 Hz, pump duration of 5 ms, pulse energy of 130 J, pulse duration of 5.5 ns, peak power of 20 kW, and beam quality M2 of 1.3 were obtained. The laser structure uses vacuum packaging and can run stably in the temperature range of －40 ℃ to 50 ℃. The output instability is less than 5% by natural cooling. The laser can also be driven by lithium batteries for further application.
- wide temperature range,
- miniaturization,
- eye-safe,
- Q-switched

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