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

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Abstract

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.

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DOI:10.3788/col201917.031402

所属栏目:Lasers and laser optics

基金项目:This work was supported by the National Natural Science Foundation of China (NSFC) (No. 61627821) and the National Key Research and Development Program of China (No. 2017YFB0405203).

收稿日期:2018-09-10

录用日期:2018-12-14

网络出版日期:2019-03-12

作者单位    点击查看

Yixuan Zhang:School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
Chunqing Gao:School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
Qing Wang:School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
Quanxin Na:School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
Meng Zhang:School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
Mingwei Gao:School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
Shuai Huang:School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China

联系人作者:Chunqing Gao(gao@bit.edu.cn)

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引用该论文

Yixuan Zhang, Chunqing Gao, Qing Wang, Quanxin Na, Meng Zhang, Mingwei Gao, Shuai Huang, "1 kHz single-frequency, injection-seeded Er:YAG laser with an optical feedback," Chinese Optics Letters 17(3), 031402 (2019)

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