高功率光纤激光信号耦合器

实验研究了由三根信号光纤锥形束和一根多模光纤组成的3×1信号耦合器.通过仿真,发现锥形长度越长传输效率和输出光束质量越好,同时也验证了对于低阶模场的吸收要高于高阶模场.实验中,制作了锥区长度为10 mm的3×1信号耦合器,在单纤注入信号功率分别为258 W和365 W的情况下获得转换效率为96.6%的信号输出,总输出功率602W,光束质量为M^2x=10.5,M2y=9.7....

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Bibliographic Details
Published in红外与毫米波学报 Vol. 35; no. 1; pp. 15 - 20
Main Author 陈霄 肖起榕 闫平 金光勇 任海翠 孙骏逸 巩马理
Format Journal Article
LanguageChinese
Published 长春理工大学光电信息科学与技术系,吉林长春,130022%清华大学精密仪器系,北京,100084 2016
Subjects
光纤光学
光纤激光器
激光
耦合理论
光纤光学
fiber optics
lasers
激光
光纤激光器
general theory of combining
fiber lasers
耦合理论
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ISSN1001-9014
DOI10.11972/j.issn.1001-9014.2016.01.004

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Summary:实验研究了由三根信号光纤锥形束和一根多模光纤组成的3×1信号耦合器.通过仿真,发现锥形长度越长传输效率和输出光束质量越好,同时也验证了对于低阶模场的吸收要高于高阶模场.实验中,制作了锥区长度为10 mm的3×1信号耦合器,在单纤注入信号功率分别为258 W和365 W的情况下获得转换效率为96.6%的信号输出,总输出功率602W,光束质量为M^2x=10.5,M2y=9.7.
Bibliography:fiber optics; fiber lasers; lasers; general theory of combining
31-1577/TN
CHEN Xiao, XIAO Qi-Rong, YAN Pin, JIN Guang-Yong, REN Hai-Cui, SUN Jun-Yi, GONG Ma-Li （ 1. Province Key Laboratory of Solid laser technology and application. College of science. Changchun University of Science and Technology, Changchun 130022, China; 2. Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instrument, Tsinghua University, Beijing 100084, China）
The 3 × 1 fused tapered fiber bundle（ FTFB） signal combiner consisting of three signal fibers and a multi-mode output fiber was studied. The simulation results indicate that the transfer efficiency and output beam quality are getting better with longer taper length. M oreover,transfer efficiency for low-order mode launching is higher than that for high-order mode launching. A 3 × 1 signal combiner with taper length of 10 mm was fabricated in experiment. The input beam with high beam quality results in high transfer efficiency,which agrees
ISSN:1001-9014
DOI:10.11972/j.issn.1001-9014.2016.01.004