A comparison of temperature sensing characteristics of SMS structures using step and graded index multimode fibers

被引：32
|
作者：
Kumar, Manoj [1 ]
Kumar, Arun [1 ]
Tripathi, Saurabh Mani [2 ]
机构：
[1] Indian Inst Technol Delhi, Dept Phys, New Delhi 110016, India
[2] Univ Quebec, Photon Res Ctr, Outaouais, PQ, Canada
来源：
OPTICS COMMUNICATIONS | 2014年 / 312卷
关键词：
SMS structures; Fiber optic sensors; Temperature sensors;
D O I：
10.1016/j.optcom.2013.09.034
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A comparative study of the temperature sensitivities of the single-multi-single mode (SMS) fiber structures employing step-index and graded-index multimode fibers (MMFs), for two different doping concentrations of GeO2 in MMF core, is carried out. The temperature sensitivity for graded-index MMF is found to be much larger (approx. 45-285 times) for the entire range of wavelength operation (0.7-1.6 mu m). A physical explanation of the observed behavior is also presented. The study should be useful in designing various fiber optic multimode interference based devices with high or low temperature sensitivities. (C) 2013 Elsevier B.V. All rights reserved
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页码：222 / 226
页数：5
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