Guided acoustic-wave Brillouin scattering characteristics of few-mode fiber

被引:14
|
作者
Matsui, Takashi [1 ]
Nakajima, Kazuhide [1 ]
Yamamoto, Fumihiko [1 ]
机构
[1] NTT Corp, Access Network Serv Syst Labs, Tsukuba, Ibaraki 3050805, Japan
关键词
D O I
10.1364/AO.54.006093
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We experimentally investigate the modal dependence of the guided-acoustic wave Brillouin scattering (GAWBS) characteristics in a few-mode fiber (FMF). We clarify that launching higher-order modes into FMF induces different peak frequencies from those of single-mode fiber (SMF) in the GAWBS spectrum and that the GAWBS spectrum strongly depends on the mode excitation power ratio between the LP01 and LP11 modes. We evaluate the mode excitation power ratio at a splice between an FMF and an SMF by utilizing the GAWBS spectrum, which we realize by detecting only the fundamental mode at the output of the FMF and without the use of a mode demultiplexer. (C) 2015 Optical Society of America
引用
收藏
页码:6093 / 6097
页数:5
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