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10.6 GHz线宽保持随机光纤激光种子源

10.6 GHz Linewidth Maintained Random Fiber Laser Seed Source

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摘要

在基于主振荡放大结构的光纤放大器中, 窄线宽、时域稳定的种子源对抑制非线性效应和获得数千瓦窄线宽的激光输出至关重要。随机光纤激光器基于瑞利散射和拉曼增益, 在时域稳定性上独具优势, 近年来得到了广泛研究。将基于自研光纤光栅搭建的1018 nm光纤激光作为抽运源, 采用半开放腔随机激光形式输出1067.6 nm激光, 并基于窄带光栅滤波和三级放大结构, 实现了42.8 W、10.6 GHz线宽的激光输出, 线宽在放大过程中保持不变, 此光源特别适合作为数千瓦级窄线宽光纤放大器的种子源。

Abstract

In a fiber amplifier which is based on master oscillator power amplifier structure, generating a seed source with narrow linewidth and stable temporal property is very important for suppressing nonlinear effects and obtaining multi-kilowatts power. The random fiber laser based on Rayleigh scattering and Raman gain has been widely investigated due to the superior performance on temporal stability. Taking 1018 nm fiber laser based on self-fabricated fiber grating as the pump source, a 10.6 GHz, 1067.6 nm random fiber laser as the seed source is achieved by adopting a half open cavity. A three-stage power amplifier structure boosts the seed to 42.8 W, the linewidth is maintained during the power scaling process, which shows that the light source has a great potential to be used as the seed source of multi-kilowatts fiber amplifier.

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中图分类号:O436

DOI:10.3788/cjl201744.0701005

所属栏目:激光物理

基金项目:科技部重点专项(2016YFB0402201)、国家自然科学基金 (U1330134,61308024,61405202)、上海市自然科学基金(16ZR1440100,16ZR1440200)、上海市青年科技英才扬帆计划(17YF1421200)、上海市优秀技术带头人计划(17XD1424800)、江苏省科技支撑计划(BE2014001)、江苏省重点研发计划(BE2016005-4)、王宽诚教育基金

收稿日期:2017-03-01

修改稿日期:2017-03-23

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陈晓龙:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800
郑也:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800中国科学院大学, 北京 100049
李璇:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800
皮浩洋:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800
赵纯:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800
刘恺:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800
全昭:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800
沈辉:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800
杨依枫:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800
何兵:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800南京先进激光技术研究院, 江苏 南京 210038
周军:中国科学院上海光学精密机械研究所, 上海市全固态激光器与应用技术重点实验室, 上海 201800南京中科神光科技有限公司, 江苏 南京 210038

联系人作者:陈晓龙(xl_chen@siom.ac.cn)

备注:陈晓龙(1989-), 男, 本科, 工程师, 主要从事高功率光纤激光器方面的研究。

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引用该论文

Chen Xiaolong,Zheng Ye,Li Xuan,Pi Haoyang,Zhao Chun,Liu Kai,Quan Zhao,Shen Hui,Yang Yifeng,He Bing,Zhou Jun. 10.6 GHz Linewidth Maintained Random Fiber Laser Seed Source[J]. Chinese Journal of Lasers, 2017, 44(7): 0701005

陈晓龙,郑也,李璇,皮浩洋,赵纯,刘恺,全昭,沈辉,杨依枫,何兵,周军. 10.6 GHz线宽保持随机光纤激光种子源[J]. 中国激光, 2017, 44(7): 0701005

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