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

Shuai Huang; Qing Wang; Meng Zhang; Chaoyong Chen; Kaixin Wang; Chunqing Gao

doi:10.1117/12.2542375

12 March 2020 High-energy, single-frequency, Q-switched Er:YAG laser for coherent wind measurement lidar

Shuai Huang, Qing Wang, Meng Zhang, Chaoyong Chen, Kaixin Wang, Chunqing Gao

Proceedings Volume 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications; 1143708 (2020) https://doi.org/10.1117/12.2542375
Event: 2019 International Conference on Optical Instruments and Technology, 2019, Beijing, China

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.

Citation Download Citation

Shuai Huang, Qing Wang, Meng Zhang, Chaoyong Chen, Kaixin Wang, and Chunqing Gao "High-energy, single-frequency, Q-switched Er:YAG laser for coherent wind measurement lidar", Proc. SPIE 11437, 2019 International Conference on Optical Instruments and Technology: Advanced Laser Technology and Applications, 1143708 (12 March 2020); https://doi.org/10.1117/12.2542375

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