Chinese Optics Letters, 2017, 15 (3): 031402, Published Online: Jul. 25, 2018
High power single-longitudinal-mode Ho3+:YVO4 unidirectional ring laser
Abstract
We demonstrate a single-longitudinal-mode Ho 3 + : YVO 4 unidirectional ring laser based on the acousto-optic effect, utilizing the features of the acousto-optical Q switch and half-wave plate to achieve unidirectional operation. The maximum power achieved in the single-longitudinal-mode at 2053.9 nm is 941 mW when the absorbed power is set as 4.4 W, yielding a nearly 50% slope efficiency. The M 2 factor is 1.1. The results show that such a technique offers a potentially promising new method for achieving a high power and narrow linewidth 2 μm single-longitudinal-mode laser.
Jing Wu, Youlun Ju, Baoquan Yao, Tongyu Dai, Zhenguo Zhang, Xiaoming Duan, Yuezhu Wang. High power single-longitudinal-mode Ho3+:YVO4 unidirectional ring laser[J]. Chinese Optics Letters, 2017, 15(3): 031402.