Zhang Yixuan, Gao Chunqing, Wang Qing, Na QuanXin, Gao Mingwei, Zhang Meng, Huang Shuai
Appl Opt. 2018 May 20;57(15):4222-4227. doi: 10.1364/AO.57.004222.
A stable, 2.09 μm single-frequency Ho:YAG master oscillator and power amplifier (MOPA) system at a pulse repetition frequency of 1.25 kHz is demonstrated. The maximum output energy of the single-frequency injection-seeded laser is 13.76 mJ, and the corresponding pulse width is 178.9 ns. The seed laser is a continuous-wave Ho:YAG non-planar ring oscillator laser. The half-width of the pulse spectrum is measured to be 2.65 MHz by using the heterodyne technique, which is about 1.06 times Fourier transform limited.
展示了一种稳定的、脉冲重复频率为1.25kHz的2.09μm单频Ho:YAG主振荡功率放大（MOPA）系统。单频注入种子激光的最大输出能量为13.76mJ，相应的脉冲宽度为178.9ns。种子激光是一台连续波Ho:YAG非平面环形振荡器激光器。利用外差技术测得脉冲光谱的半高宽为2.65MHz，约为傅里叶变换极限的1.06倍。
