Miniature fiber-optic high temperature sensor based on a hybrid structured Fabry-Perot interferometer

被引：325

作者：

Choi, Hae Young ^{[1
]}

Park, Kwan Seoh ^{[1
]}

Park, Seong Jun ^{[1
]}

Paek, Un-Chul ^{[1
]}

Lee, Byeong Ha ^{[1
]}

Choi, Eun Seo ^{[2
]}

机构：

[1] Gwangju Inst Sci & Technol, Dept Informat & Commun, Kwangju 500712, South Korea

[2] Chosun Univ, Dept Phys, Kwangju 501759, South Korea

来源：

OPTICS LETTERS | 2008年 / 33卷 / 21期

关键词：

D O I：

10.1364/OL.33.002455

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A miniature Fabry-Perot (FP) interferometric fiber-optic sensor suitable for high-temperature sensing is proposed and demonstrated. The sensor head consists of two FP cavities formed by fusion splicing a short hollow-core fiber and a piece of single-mode fiber at a photonic crystal fiber in series. The reflection spectra of an implemented sensor are measured at several temperatures and analyzed in the spatial frequency domain. The experiment shows that the thermal-optic effect of the cavity material is much more appreciable than its thermal expansion. The temperature measurements up to 1000 degrees C with a step of 50 degrees C confirm that it could be applicable as a high-temperature sensor. (C) 2008 Optical Society of America

引用

页码：2455 / 2457

页数：3

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