Investigation of interferometric noise in fiber-optic gas sensors with use of wavelength modulation spectroscopy

被引：28

作者：

Jin, W ^{[1
]}

Xu, YZ ^{[1
]}

Demokan, MS ^{[1
]}

Stewart, G ^{[1
]}

机构：

[1] UNIV STRATHCLYDE, DEPT ELECT & ELECT ENGN, GLASGOW G1 1XW, LANARK, SCOTLAND

来源：

APPLIED OPTICS | 1997年 / 36卷 / 28期

关键词：

fiber-optic sensors; gas sensors; interferometric noise;

D O I：

10.1364/AO.36.007239

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on interferometric noise Limitation of fiber-optic gas sensors with highly coherent lasers and wavelength modulation spectroscopy. Interference between Signal wave and reflected waves causes signal fluctuation in the output, which limits the performance of the sensing system; Sensor resolution Limited by interferometric noise is calculated for a fiber-optic gas sensor with the Q(6) absorption Line of methane gas at approximately 1650 nm; The results are useful for system designers of this particular type of gas sensor. (C) 1997 Optical Society of America.

引用

页码：7239 / 7246

页数：8

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