A passively Q-switched dual-wavelength laser based on the coaxial diode end-pumping configuration

Xianzhong Zhang; Kai Zhong; Yang Liu; Shengyue Lu; Hongzhan Qiao; Kefei Liu; Yangfan Gu; Degang Xu; Jianquan Yao

doi:10.1117/12.2573259

10 October 2020 A passively Q-switched dual-wavelength laser based on the coaxial diode end-pumping configuration

Xianzhong Zhang, Kai Zhong, Yang Liu, Shengyue Lu, Hongzhan Qiao, Kefei Liu, Yangfan Gu, Degang Xu, Jianquan Yao

Proceedings Volume 11544, High-Power Lasers and Applications XI; 1154405 (2020) https://doi.org/10.1117/12.2573259
Event: SPIE/COS Photonics Asia, 2020, Online Only

Abstract

A passively Q-switched dual-wavelength laser with coaxial diode end-pumping configuration is demonstrated. A theoretical model was built to simulate the dynamic process of dual-wavelength laser pulse generation. The experiment was performed with Nd:YVO₄/Nd:GdVO₄ composite laser crystals and a Cr⁴⁺:YAG absorber. The continuous-wave and Q-switched output power reached 3.48 W and 607 mW, respectively, under the maximum LD pump power of 8.0 W, corresponding to optical-to-optical conversion efficiencies of 43.5% and 7.6%. The power ratio between 1064.4 nm and 1063.5 nm could be tuned by varying the pump wavelength to balance the gains in two laser crystals.

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Citation Download Citation

Xianzhong Zhang, Kai Zhong, Yang Liu, Shengyue Lu, Hongzhan Qiao, Kefei Liu, Yangfan Gu, Degang Xu, and Jianquan Yao "A passively Q-switched dual-wavelength laser based on the coaxial diode end-pumping configuration", Proc. SPIE 11544, High-Power Lasers and Applications XI, 1154405 (10 October 2020); https://doi.org/10.1117/12.2573259

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