Zhang Yixuan, Gao Chunqing, Wang Qing, Na Quanxin, Zhang Meng, Ye Qing, Gao Mingwei, Zhang Jian
Opt Express. 2016 Nov 28;24(24):27805-27811. doi: 10.1364/OE.24.027805.
A 2090 nm injection-seeded Q-switched Ho:YAG ceramic laser pumped by a 1.91 μm fiber-coupled LD is demonstrated in this paper. Single-frequency operation of Q-switched Ho:YAG ceramic laser is achieved by injection seeding technique. The maximum output energy of the single-frequency Q-switched Ho:YAG ceramic laser is 14.76 mJ, with a pulse width of 121.6 ns and a repetition rate of 200 Hz. The half-width of the pulse spectrum measured by heterodyne technique is 3.84 MHz. The fluctuation of the center frequency of the pulsed laser is 1.49 MHz (RMS) in 1 hour. As far as we know, this is the first time to report a single-frequency, injection-seeded Ho:YAG ceramic pulsed laser.
本文展示了一种由1.91μm光纤耦合激光二极管泵浦的2090nm注入种子调Q Ho:YAG陶瓷激光器。通过注入种子技术实现了调Q Ho:YAG陶瓷激光器的单频运转。单频调Q Ho:YAG陶瓷激光器的最大输出能量为14.76mJ，脉冲宽度为121.6ns，重复频率为200Hz。采用外差技术测量的脉冲光谱半高宽为3.84MHz。脉冲激光中心频率在1小时内的波动为1.49MHz（均方根值）。据我们所知，这是首次报道单频、注入种子的Ho:YAG陶瓷脉冲激光器。
