中心波长1080 nm的高功率光纤光栅研制与测试

宋华青; 刘玙; 黄珊; 冯曦; 王建军; 陶汝茂

doi:10.11884/HPLPB202133.200181

中心波长1080 nm的高功率光纤光栅研制与测试

doi: 10.11884/HPLPB202133.200181

中国工程物理研究院激光聚变研究中心，四川绵阳 621900

基金项目: 国家自然科学基金项目（61905226，61805222）；国家重点研发计划项目（2017YFB1104401）

详细信息

作者简介:
宋华青（1992—），男，博士，助理研究员，从事激光应用及新型光器件研究；15298398611@163.com

通讯作者:
陶汝茂（1987—），男，博士，副研究员，从事光纤激光技术研究；taorumao@sohu.com

中图分类号: TN248
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出版历程
- 收稿日期: 2020-06-30
- 修回日期: 2020-11-02
- 刊出日期: 2021-01-07

Fabrication and test of high power fiber Bragg grating with 1080 nm central wavelength

Laser Fusion Research Center, CAEP, P. O. Box 919-988, Mianyang 621900, China

摘要

摘要: 介绍了基于紫外光侧写和相位掩模法制作双包层光纤光栅的工艺，制作了一对中心波长1080 nm的光纤光栅，测试光谱得到其反射谱带宽分别为2 nm和1 nm。采用自制的光纤光栅搭建了一个高功率光纤振荡器，得到最高502 W的激光输出，并测试了输出激光的光谱和光束质量。
- 光纤激光器 /
- 光纤光栅 /
- 相位掩模法 /
- 振荡器
Abstract: High power double cladding fiber Bragg grating (FBG) fabrication based on ultraviolet laser and phase mask method was introduced. A pair of chirped FBGs with 1080 nm central wavelength was made. The reflection spectrum bandwidths were 2 nm and 1 nm, respectively. We adopted these FBGs to construct a fiber oscillator. whose output signal power is up to 502 W.
- fiber laser /
- fiber Bragg grating /
- phase mask method /
- laser oscillator

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图 1 光纤光栅制备系统示意图

Figure 1. Experimental scheme of FBG fabricating system

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图 2 光纤光栅反射光谱

Figure 2. Reflection spectrum of the fabricated FBGs

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图 3 光纤激光振荡器结构示意图

Figure 3. Scheme of the high power fiber oscillator

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图 4 泵浦源电流与输出激光功率关系图

Figure 4. Pump diode current vs signal laser power

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图 5 信号光502 W时的（a）激光光谱和（b）光束质量M²

Figure 5. (a) Spectrum and (b) M² of the laser emission at 502 W

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参考文献(10)

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