Research on 200 mJ semiconductor end-pumped MOPA Laser

XIONG Bo; YU Cailiang; CHU Zhaohua; ZHAO Chong; KAO Xiaomei; WU Jiakai; CUI Ying; MAO Mingfeng; XIN Chao; WEI Xiaoyu

doi:10.5768/JAO201940.0307001

Volume 40 Issue 3

May 2019

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Article Navigation > Journal of Applied Optics > 2019 > 40(3): 489-492

XIONG Bo, YU Cailiang, CHU Zhaohua, ZHAO Chong, KAO Xiaomei, WU Jiakai, CUI Ying, MAO Mingfeng, XIN Chao, WEI Xiaoyu. Research on 200 mJ semiconductor end-pumped MOPA Laser[J]. Journal of Applied Optics, 2019, 40(3): 489-492. doi: 10.5768/JAO201940.0307001

Citation:

XIONG Bo, YU Cailiang, CHU Zhaohua, ZHAO Chong, KAO Xiaomei, WU Jiakai, CUI Ying, MAO Mingfeng, XIN Chao, WEI Xiaoyu. Research on 200 mJ semiconductor end-pumped MOPA Laser[J]. Journal of Applied Optics, 2019, 40(3): 489-492. doi: 10.5768/JAO201940.0307001

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Research on 200 mJ semiconductor end-pumped MOPA Laser

doi: 10.5768/JAO201940.0307001

Department of Laser Equipment, Jiangsu Shuguang Photoelectric CO., LTD., Yangzhou 225009, China

Received Date: 2018-08-15
Rev Recd Date: 2018-10-15
Publish Date: 2019-05-01

Abstract

Abstract

Using the high-power laser diode array (LDA) end-pumped Nd:YAG laser bar method, combined with the design of the convex-concave unstable cavity, the average energy of the small beam divergence laser output was achieved about 83 mJ under 20 Hz operating conditions. Then taking the laser as the oscillation source, the same method of the LDA end-pumped Nd:YAG laser rod was used for energy amplification to form an LDA end-pumped master oscillator-power amplification (MOPA) laser, which finally obtained the pulsed laser output with a repetitive frequency of 20 Hz, an average energy of >200 mJ, a divergence angle < 2.1 mrad and an energy fluctuation < ±2.5%. The laser has a optical-to-optical conversion efficiency of about 14.6%, a volume of 175×91×49 mm³, a mass of < 1 kg, and a divergence angle of < 0.3 mrad after transmitted through an 8^× transmission antenna.
- laser diode array(LDA),
- end-pumped,
- master oscillator-power amplification(MOPA),
- laser range finder,
- laser target designation

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References(15)

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