Liu Xiangzhong, Zhang Yimin, Dong Zhipeng, Lv Jialiang, Dai Chuansheng, Luo Jing, Lu Yuan, Ma Xuexiao, Lin Jiaqiang, Yao Peijun, Gu Chun, Xu Lixin, Zhan Qiwen
Opt Express. 2022 Jul 18;30(15):27123-27131. doi: 10.1364/OE.463667.
We propose and demonstrate an all-polarization-maintaining (PM) high-power cylindrical vector beam (CVB) fiber laser based on the principle of mode superposition. The non-degenerated LPy 11a is generated from the oscillator with the maximum power of 11.9W, whose slope efficiency is 24.4%. Then the stable single TE vector beam is achieved by the superposition of LPy 11a and LPx 11b in an all-PM architecture, its output power is 3.1W and mode purity of 91.2%. Due to the all-PM architecture, our configuration is free of adjusting polarization controller (PC) and reliable during long-term operation. This laser could be used as a high-power CVBs source for a wide range of applications towards scientific research and industrial field.
