Few-mode fiber based optical sensors

被引：109
|
作者：
Li, An [1 ]
Wang, Yifei [1 ,2 ]
Hu, Qian [1 ]
Shieh, William [1 ]
机构：
[1] Univ Melbourne, Dept Elect & Elect Engn, Melbourne, Vic 3010, Australia
[2] Natl ICT Australia, Melbourne, Vic 3010, Australia
来源：
OPTICS EXPRESS | 2015年 / 23卷 / 02期
关键词：
STIMULATED BRILLOUIN-SCATTERING; CO-OFDM SIGNAL; 2-MODE FIBER; BIREFRINGENCE; TRANSMISSION; TEMPERATURE; STRAIN;
D O I：
10.1364/OE.23.001139
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Few-mode fibers (FMFs) have found applications in optical communications and sensors with attractive features that standard single mode fiber (SSMF) do not possess. We report our recent progress on FMF based optical sensors, and show the potential of utilizing the spatial dimension for multi-parameter sensing with discrimination capability. We first show a discrete type FMF sensor based on interferometer structure with a short FMF, utilizing the modal interference between either the polarizations (x and y) or the spatial modes (LP01 and LP11). We then show a distributed type FMF sensor by generating the stimulated Brillouin scattering (SBS) in a long FMF. We characterize the Brillouin gain spectrum (BGS) with a pump-probe configuration, and measure the temperature and strain coefficients for LP01 and LP11 modes. The proposed FMF based optical sensor can be applied to sensing a wide range of parameters. (C) 2015 Optical Society of America
引用
收藏
页码：1139 / 1150
页数：12
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