Characterization of stimulated Brillouin scattering in a few-mode fiber

被引:50
|
作者
Song, Kwang Yong [1 ]
Kim, Yong Hyun [1 ]
机构
[1] Chung Ang Univ, Dept Phys, Seoul 156756, South Korea
基金
新加坡国家研究基金会;
关键词
OPTICAL-FIBERS; SELECTIVE COUPLER; 2-MODE FIBER; SINGLE-MODE; TRANSMISSION; GAIN;
D O I
10.1364/OL.38.004841
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Characterization of stimulated Brillouin scattering (SBS) in a few-mode fiber (FMF) is experimentally demonstrated, where the Brillouin gain spectrum (BGS) of intramodal or intermodal SBS is analyzed for different pump-probe pairs of four LP modes-LP01, LP11, LP21, and LP02 modes-guided in the fiber. A mode-division multiplexer composed of concatenated mode-selective couplers is applied for selective launching of each LP mode, and a differential measurement scheme is adopted for the analysis of the BGS. The intermodal SBS is observed in each pump-probe pair of different modes, and the Brillouin gain is measured to be within 14%-45% of that of the SBS between the LP01 modes. The SBS threshold of each LP mode in the FMF is also evaluated. (C) 2013 Optical Society of America
引用
收藏
页码:4841 / 4844
页数:4
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