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Proceedings Paper

High-energy, single-frequency, Q-switched Er:YAG laser for coherent wind measurement lidar
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Paper Abstract

A1645nm injection-seeded Q-switched Er:YAG ceramic laser pumped by a 1532 nm fiber laser with changeable pulse repetition frequency (PRF) used for Coherent wind measurement Lidar is demonstrated. Single-frequency operation of Er:YAG laser is achieved by injection seeding technique. A ‘M-shape’ ring cavity is utilized to eliminate the effects of spatial hole burning. The laser delivered single-frequency pulses with energy ranging from 6.6 to 10.2 mJ. The corresponding pulse width and PRF varied between 179 ns-271 ns and 300 Hz-1 kHz, respectively. And the line width at 300 Hz is measured to be 2.82 MHz. The measured M2 factors are 1.51 and 1.54 in x and y directions, respectively.

Paper Details

Date Published: 12 March 2020
PDF: 7 pages
Proc. SPIE 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 1143708 (12 March 2020); doi: 10.1117/12.2542375
Show Author Affiliations
Shuai Huang, Beijing Institute of Technology (China)
Qing Wang, Beijing Institute of Technology (China)
Meng Zhang, Beijing Institute of Technology (China)
Chaoyong Chen, Beijing Institute of Technology (China)
Kaixin Wang, Beijing Institute of Technology (China)
Chunqing Gao, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 11437:
2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications
Zhiyi Wei; Chunqing Gao; Pu Wang; Franz X, Kärtner; Stefan A. Weber, Editor(s)

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