Influence of mode competition on beam quality of fiber amplifier

doi:10.1088/1674-1056/23/10/104221

›› 2014, Vol. 23 ›› Issue (10): 104221-104221.doi: 10.1088/1674-1056/23/10/104221

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Influence of mode competition on beam quality of fiber amplifier

肖起榕, 闫平, 孙骏逸, 陈霄, 任海翠, 巩马理

Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instrument, Tsinghua University, Beijing 100084, China

收稿日期:2013-12-24 修回日期:2014-03-03 出版日期:2014-10-15 发布日期:2014-10-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 61307057), the State Key Laboratory of Tribology, Tsinghua University, China (Grant No. SKLT12B08), and the China Postdoctoral Science Foundation (Grant Nos. 2012M520258 and 2013T60109).

Influence of mode competition on beam quality of fiber amplifier

Xiao Qi-Rong (肖起榕), Yan Ping (闫平), Sun Jun-Yi (孙骏逸), Chen Xiao (陈霄), Ren Hai-Cui (任海翠), Gong Ma-Li (巩马理)

Center for Photonics and Electronics, State Key Laboratory of Tribology, Department of Precision Instrument, Tsinghua University, Beijing 100084, China

Received:2013-12-24 Revised:2014-03-03 Online:2014-10-15 Published:2014-10-15
Contact: Gong Ma-Li E-mail:gongml@mail.tsinghua.edu.cn
About author:42.55.-f; 42.55.Wd; 42.81.-i; 42.60.-v
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 61307057), the State Key Laboratory of Tribology, Tsinghua University, China (Grant No. SKLT12B08), and the China Postdoctoral Science Foundation (Grant Nos. 2012M520258 and 2013T60109).

摘要/Abstract

摘要： Theoretical and experimental studies of the influence of the mode competition on the output beam quality of fiber amplifiers are presented. Rate equations and modal decomposition method are used in the theoretical model. In the experiment, the output beam-quality factor of a fiber amplifier, which is based on a Yb-doped double-clad large mode area fiber as a function of the seed beam quality and the pump power of the amplifier, is measured. The experimental results are consistent with the theoretical analysis.

关键词: fiber laser and amplifier, mode competition, beam quality

Abstract: Theoretical and experimental studies of the influence of the mode competition on the output beam quality of fiber amplifiers are presented. Rate equations and modal decomposition method are used in the theoretical model. In the experiment, the output beam-quality factor of a fiber amplifier, which is based on a Yb-doped double-clad large mode area fiber as a function of the seed beam quality and the pump power of the amplifier, is measured. The experimental results are consistent with the theoretical analysis.

Key words: fiber laser and amplifier, mode competition, beam quality

中图分类号: (Lasers)

42.55.-f

42.55.Wd (Fiber lasers) 42.81.-i (Fiber optics) 42.60.-v (Laser optical systems: design and operation)

肖起榕, 闫平, 孙骏逸, 陈霄, 任海翠, 巩马理. Influence of mode competition on beam quality of fiber amplifier[J]. , 2014, 23(10): 104221-104221.

Xiao Qi-Rong (肖起榕), Yan Ping (闫平), Sun Jun-Yi (孙骏逸), Chen Xiao (陈霄), Ren Hai-Cui (任海翠), Gong Ma-Li (巩马理). Influence of mode competition on beam quality of fiber amplifier[J]. Chin. Phys. B, 2014, 23(10): 104221-104221.

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Influence of mode competition on beam quality of fiber amplifier

Influence of mode competition on beam quality of fiber amplifier

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