@inproceedings{d296ea259af14826b223228a1b74fc42,
title = "Single-frequency Q-switched Er:YAG laser with Herriott-type multi-pass cavity",
abstract = "We report a single-frequency Er:YAG Q-switched laser with Herriott-type multi-pass cavity (MPC). The use of the MPC increases the output pulse width from 189 ns to 445 ns. The single-frequency pulsed laser with the MPC delivers output at a repetition rate of 500 Hz and achieves a maximum single-pulse energy of 5.4 mJ. A monolithic Er:YAG non-planar ring oscillator (NPRO) serves as the seed laser, and single-frequency pulsed operation is realized through the Ramp-Fire injection-locking technique. The linewidth of the pulsed laser is measured to be 1.09 MHz, with a standard deviation of the central frequency of 0.97 MHz. The standard deviation of the energy fluctuation is 0.10 mJ. The M2 factors are measured as 1.69 in the X direction and 1.70 in the Y direction. To the best of our knowledge, this is the first demonstration of a single-frequency pulsed injection-locked laser employing an MPC configuration.",
keywords = "1.6 μm, Er:YAG laser, MPC, single-frequency",
author = "Yang Yu and Xianqing Zang and Yusong Jiao and Qing Wang and Chunqing Gao",
note = "Publisher Copyright: {\textcopyright} 2025 SPIE.; 20th National Conference on Laser Technology and Optoelectronics ; Conference date: 20-06-2025 Through 23-06-2025",
year = "2025",
month = aug,
day = "25",
doi = "10.1117/12.3076312",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Qiang Liu",
booktitle = "Twentieth National Conference on Laser Technology and Optoelectronics",
address = "United States",
}