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VCSEL侧面抽运的全固态激光器

VCSEL Side-Pumped All Solid-State Lasers

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摘要

研究了一种VCSEL(垂直腔表面发射激光器)侧面抽运的全固态激光器, 报道了一种可以稳定工作的紧凑型Nd∶YAG激光器。该激光器采用VCSEL阵列进行侧面抽运, 利用微透镜阵列对VCSEL阵列进行准直, 并以柱透镜将抽运光整形为线形光束以获得足够高的功率密度, 以Cr4+∶YAG作为可饱和吸收体进行被动调Q, 最终得到重复频率为40 Hz、脉宽为4 ns及单脉冲能量为2.1 mJ的激光输出。测试结果表明, 该激光器在较大的温度范围内都可以实现稳定的激光输出, 同时具有结构紧凑、高抗失谐和高抗振动的特性, 可作为未来空间激光探测及其他特殊环境下应用的光源。

Abstract

A kind of vertical-cavity surface-emitter laser (VCSEL) side-pumped all solid-state laser is studied. A compact and stable Nd∶YAG solid-state laser is reported. The laser is side-pumped by VCSEL arrays, and the VCSEL arrays are collimated by microlens array. A cylindrical lens is used to reshape the pump beam into a linear beam to achieve high power density. Besides, the Cr4+∶YAG crystal is used as saturable absorber to be the passive Q-switch. The laser output with 40 Hz repetition frequency, 4 ns pulse width and single pulse energy of 2.1 mJ is obtained. The experimental results show that the laser can achieve stable laser output in a large temperature range. The laser has a compact structure and high resistance to detuning and vibration. It can be used as a light source for future space laser detection and other special environments.

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中图分类号:TN248.1

DOI:10.3788/cjl201845.1001001

所属栏目:激光器件与激光物理

收稿日期:2018-04-08

修改稿日期:2018-04-24

网络出版日期:2018-05-07

作者单位    点击查看

陈思露:中国科学院上海光学精密机械研究所空间激光信息传输与探测技术重点实验室, 上海 201800中国科学院大学, 北京 100049
张鑫:中国科学院上海光学精密机械研究所空间激光信息传输与探测技术重点实验室, 上海 201800
蒋静:中国科学院上海光学精密机械研究所空间激光信息传输与探测技术重点实验室, 上海 201800
孟俊清:中国科学院上海光学精密机械研究所空间激光信息传输与探测技术重点实验室, 上海 201800
陈卫标:中国科学院上海光学精密机械研究所空间激光信息传输与探测技术重点实验室, 上海 201800

联系人作者:孟俊清(jqmeng@siom.ac.cn)

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引用该论文

Chen Silu,Zhang Xin,Jiang Jing,Meng Junqing,Chen Weibiao. VCSEL Side-Pumped All Solid-State Lasers[J]. Chinese Journal of Lasers, 2018, 45(10): 1001001

陈思露,张鑫,蒋静,孟俊清,陈卫标. VCSEL侧面抽运的全固态激光器[J]. 中国激光, 2018, 45(10): 1001001

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