A 52-mJ Ho: YAG Master Oscillator and Power Amplifier with Kilohertz Pulse Repetition Frequency

作者：Qian Chuan Peng; Yao Bao Quan; Duan Xiao Ming^*; Ju You Lun; Yu Kuai Kuai; Wang Yue Zhu

来源：Chinese Physics Letters, 2014, 31(9): 094201.

DOI：10.1088/0256-307X/31/9/094201

We report on a high energy, high repetition rate Ho: YAG master oscillator and power amplifier (MOPA), resonantly dual-end-pumped by Tm:YLF lasers at room temperature. At the pulse repetition frequency of 1 kHz, we demonstrate a maximum energy of 30mJ per pulse with a 28.2 ns pulse width in a Ho: YAG oscillator system resonantly double-end-pumped by Tm: YLF lasers. A maximum energy of 52mJ per pulse with a 30.5 ns pulse width is achieved in the Ho: YAG amplifier, corresponding to a peak power of approximately 1.7MW. The output wavelength is at 2090.6nm and 2096.9nm, and a beam quality factor of M-2 similar to 2.1 is achieved.

• 出版日期2014-9
• 单位哈尔滨工业大学