Gain-self-balanced coaxial-end-pumped orthogonally polarized laser with high coherence and good beam quality

Yizhe Zheng; Kai Zhong; Hongzhan Qiao; Xianzhong Zhang; Fangjie Li; Sijia Wang; Tana Gegen; Xinqi Li; Degang Xu; Jianquan Yao

doi:10.1117/12.2642092

28 December 2022 Gain-self-balanced coaxial-end-pumped orthogonally polarized laser with high coherence and good beam quality

Yizhe Zheng, Kai Zhong, Hongzhan Qiao, Xianzhong Zhang, Fangjie Li, Sijia Wang, Tana Gegen, Xinqi Li, Degang Xu, Jianquan Yao

Author Affiliations +

Proceedings Volume 12310, Advanced Lasers, High-Power Lasers, and Applications XIII; 123100X (2022) https://doi.org/10.1117/12.2642092
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

Efficient orthogonally polarized lasers (OPLs) with power balance is of great significance in many fields. A gain-selfbalanced coaxial-end-pumped orthogonally polarized laser is proposed in this presentation. Using the orthogonal Nd:YVO₄ crystal arrangement and a quarter wave plate, different waves were amplified by both crystals and the OPL could operate under the optimized condition. Compared with traditional methods, the beam quality and the coherence of the OPL were greatly improved and the coherence could also be actively switched by pump conditions. Theoretical explanations and discussions were given from the view of thermal effects and laser resonators. It is believed the gain-self-balanced coaxialend-pumped OPL has broad application prospects in precision measurement and other fields.

Conference Presentation

Citation Download Citation

Yizhe Zheng, Kai Zhong, Hongzhan Qiao, Xianzhong Zhang, Fangjie Li, Sijia Wang, Tana Gegen, Xinqi Li, Degang Xu, and Jianquan Yao "Gain-self-balanced coaxial-end-pumped orthogonally polarized laser with high coherence and good beam quality", Proc. SPIE 12310, Advanced Lasers, High-Power Lasers, and Applications XIII, 123100X (28 December 2022); https://doi.org/10.1117/12.2642092

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