Theoretical and experimental study of the dual-wavelength alternately Q-switched Nd:YAG laser

Jingdong Sun; Chengpo Zeng; Yuan Dong; Guangyong Jin; Chi Feng; Long Jin

doi:10.1117/12.2576372

5 November 2020 Theoretical and experimental study of the dual-wavelength alternately Q-switched Nd:YAG laser

Jingdong Sun, Chengpo Zeng, Yuan Dong, Guangyong Jin, Chi Feng, Long Jin

Proceedings Volume 11562, AOPC 2020: Advanced Laser Technology and Application; 115620K (2020) https://doi.org/10.1117/12.2576372
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China

Abstract

A dual-wavelength alternately Electro-Optic (EO) Q-switched output laser operating at 1064 and 1319nm is demonstrated. The mathematical model describing the operation mechanism of alternately Q-switched output of dual-wavelength laser was put forward, and the principle of the dual-wavelength laser alternately Q-switched output was analyzed. When the full pumping current of Nd:YAG (A) crystal is 90 A and that of Nd:YAG (B) crystal is 70 A, alternating dual-wavelength pulsed lasers are achieved with a delay of 200μs at the pulse repetition frequency (PRF) of 10 Hz under the voltage on RTP crystals of 1000V. The results show that the experimental results were consistent with the theory, which proved the correctness of the theory of dual-wavelength laser alternately Q-switched laser.

Citation Download Citation

Jingdong Sun, Chengpo Zeng, Yuan Dong, Guangyong Jin, Chi Feng, and Long Jin "Theoretical and experimental study of the dual-wavelength alternately Q-switched Nd:YAG laser", Proc. SPIE 11562, AOPC 2020: Advanced Laser Technology and Application, 115620K (5 November 2020); https://doi.org/10.1117/12.2576372

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