Evolution of modes in double-clad Raman fiber amplifier

doi:10.1088/1674-1056/23/2/024210

中国物理B ›› 2014, Vol. 23 ›› Issue (2): 24210-024210.doi: 10.1088/1674-1056/23/2/024210

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

Evolution of modes in double-clad Raman fiber amplifier

王文亮, 黄良金, 冷进勇, 郭少锋, 姜宗福

College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China

收稿日期:2013-04-23 修回日期:2013-09-06 出版日期:2013-12-12 发布日期:2013-12-12

Evolution of modes in double-clad Raman fiber amplifier

Wang Wen-Liang (王文亮), Huang Liang-Jin (黄良金), Leng Jin-Yong (冷进勇), Guo Shao-Feng (郭少锋), Jiang Zong-Fu (姜宗福)

College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073, China

Received:2013-04-23 Revised:2013-09-06 Online:2013-12-12 Published:2013-12-12
Contact: Leng Jin-Yong E-mail:lengjy@sina.com
About author:42.55.Ye; 42.55.Wd; 42.60.Jf

摘要/Abstract

摘要： Stimulated Raman scattering in a double cladding optical fiber is studied with a continuous wave laser used as a pump source. Under various launch conditions, pump modes are differently excited. Considering the mode coupling effect among the pump modes, the evolution of the power in the Stokes modes is studied. The results show that the scattered waves (the Stokes waves) in the fiber core with 9-μm diameter and 0.14 NA could propagate predominantly in the fundamental mode of the fiber by carefully adjusting the pump light launching conditions.

关键词: fiber nonlinear optics, high power Raman fiber amplifier, fiber mode

Abstract: Stimulated Raman scattering in a double cladding optical fiber is studied with a continuous wave laser used as a pump source. Under various launch conditions, pump modes are differently excited. Considering the mode coupling effect among the pump modes, the evolution of the power in the Stokes modes is studied. The results show that the scattered waves (the Stokes waves) in the fiber core with 9-μm diameter and 0.14 NA could propagate predominantly in the fundamental mode of the fiber by carefully adjusting the pump light launching conditions.

Key words: fiber nonlinear optics, high power Raman fiber amplifier, fiber mode

中图分类号: (Raman lasers)

42.55.Ye

42.55.Wd (Fiber lasers) 42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation)

王文亮, 黄良金, 冷进勇, 郭少锋, 姜宗福. Evolution of modes in double-clad Raman fiber amplifier[J]. 中国物理B, 2014, 23(2): 24210-024210.

Wang Wen-Liang (王文亮), Huang Liang-Jin (黄良金), Leng Jin-Yong (冷进勇), Guo Shao-Feng (郭少锋), Jiang Zong-Fu (姜宗福). Evolution of modes in double-clad Raman fiber amplifier[J]. Chin. Phys. B, 2014, 23(2): 24210-024210.

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Evolution of modes in double-clad Raman fiber amplifier

Evolution of modes in double-clad Raman fiber amplifier

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