中国激光, 2017, 44 (7): 0703014, 网络出版: 2017-07-05
基于碲化铋纳米片的全光可控调Q光纤激光器
All-Optical Tunable Q-Switched Fiber Laser Based on Bismuth Telluride Nanosheets
激光器 被动调Q 拓扑绝缘体 碲化铋 全光控制 lasers passively Q-switched topological insulators bismuth telluride all-optical modulation
摘要
通过光学自组装方法制备了碲化铋可饱和吸收器件, 并获得了该器件的非线性光学响应特性。将可饱和吸收体引入掺铒光纤激光器中, 在抽运功率为170 mW时, 获得中心波长为1564.94 nm, 脉冲宽度为2.91 μs的激光输出。通过外加连续光对非线性吸收器件进行调制, 实现了脉冲持续时间和重复频率可调控的调Q光纤激光输出。
Abstract
The saturable absorber Bismuth Telluride nanosheets are synthesized via optical self-assembly method, and the nonlinear optical response characteristics are obtained. By introducing the saturable absorber into the Er-doped fiber laser, the Q-switched fiber laser can deliver the pulse laser with pulse duration of 2.91 μs , wavelength of 1564.94 nm with the pump power of 170 mW. With the modulation of continuous wave laser on nonlinear absorption devices, the pulse duration and repetition frequency tunable Q-switched fiber laser is realized.
金雨, 杜林, 蒋国保, 赵楚军. 基于碲化铋纳米片的全光可控调Q光纤激光器[J]. 中国激光, 2017, 44(7): 0703014. Jin Yu, Du Lin, Jiang Guobao, Zhao Chujun. All-Optical Tunable Q-Switched Fiber Laser Based on Bismuth Telluride Nanosheets[J]. Chinese Journal of Lasers, 2017, 44(7): 0703014.