1 kHz single-frequency, injection-seeded Er:YAG laser with an optical feedback
1 kHz single-frequency, injection-seeded Er:YAG laser with an optical feedback
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DOI：
10.3788/col201917.031402
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发表时间：
2019-03
影响因子：
3.5
通讯作者：
Yixuan Zhang;Chunqing Gao;Qing Wang;Q. Na;Mengmeng Zhang;M. Gao;Shuai Huang
中科院分区：
文献类型：
--
作者：
Yixuan Zhang;Chunqing Gao;Qing Wang;Q. Na;Mengmeng Zhang;M. Gao;Shuai Huang
报道了一种由1470 nm激光二极管泵浦的新型1 kHz单频调Q掺Er：Y3+石榴石(Er：YAG)激光器。采用斜射注入-种子技术和光反馈结构，获得了500 ns、5.52 mJ的单频衍射受限脉冲。用外差技术测得脉冲谱的半峰值全宽为1.47 MHz。测得光束质量M2因子在x和y方向上分别为1.18和1.24。
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.