1 kHz single-frequency, injection-seeded Er:YAG laser with an optical feedback  

作　　者：Yixuan Zhang Chunqing Gao Qing Wang Quanxin Na Meng Zhang Mingwei Gao Shuai Huang 张艺轩;高春清;王庆;纳全鑫;张濛;高明伟;黄帅(School of Optics and Photonics, Beijing Institute of Technology)

机构地区：[1]School of Optics and Photonics, Beijing Institute of Technology

出　　处：《Chinese Optics Letters》2019年第3期50-54,共5页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(NSFC)(No.61627821);the National Key Research and Development Program of China(No.2017YFB0405203)

摘　　要：A novel 1 kHz single-frequency, Q-switched Er-doped yttrium aluminum garnet(Er:YAG) laser pumped by a 1470 nm laser diode is demonstrated. The 500 ns, 5.52 mJ single-frequency, diffraction-limited pulses are obtained by using a ‘ramp-fire' injection-seeding technique and an optical feedback architecture. The full width at half-maximum of the pulse spectrum is measured to be 1.47 MHz by using the heterodyne technique. The beam quality M2 factors are measured to be 1.18 and 1.24 in the x and y directions, respectively.A novel 1 kHz single-frequency, Q-switched Er-doped yttrium aluminum garnet(Er:YAG) laser pumped by a 1470 nm laser diode is demonstrated. The 500 ns, 5.52 mJ single-frequency, diffraction-limited pulses are obtained by using a ‘ramp-fire' injection-seeding technique and an optical feedback architecture. The full width at half-maximum of the pulse spectrum is measured to be 1.47 MHz by using the heterodyne technique. The beam quality M2 factors are measured to be 1.18 and 1.24 in the x and y directions, respectively.

关 键 词：1 KHZ SINGLE-FREQUENCY injection-seeded ER:YAG LASER optical FEEDBACK 

分 类 号：O3[理学—力学]