Optical Fiber Sensors for High Temperature Harsh Environment Applications

Abstract

This paper summarizes our recent research progresses in developing optical fiber harsh environment sensors for various high temperature harsh environment sensing applications such as monitoring of the operating conditions in a coal-fired power plant and in-situ detection of key gas components in coal-derived syngas. The sensors described in this paper include a miniaturized inline fiber Fabry-Perot interferometer (FPI) fabricated by one-step fs laser micromachining, a long period fiber grating (LPFG) and a fiber inline core-cladding mode interferometer (CMMI) fabricated by controlled CO2 laser irradiations. Their operating principles, fabrication methods, and applications for measurement of various physical and chemical parameters in a high temperature and high pressure coexisting harsh environment are presented. © 2010 Copyright SPIE - The International Society for Optical Engineering.

Meeting Name

Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2010

Department(s)

Electrical and Computer Engineering

Second Department

Mechanical and Aerospace Engineering

Sponsor(s)

The Society of Photo-Optical Instrumentation Engineers (SPIE)
American Society of Mechanical Engineers
KAIST

Keywords and Phrases

Coal-Derived Syngas; Coal-Fired Power Plant; Core-Cladding Mode Interferometer; Fabry-Perot Interferometer; Harsh Environment Sensor; Long Period Fiber Grating; Optical Fiber Sensor

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2010 SPIE, All rights reserved.

Publication Date

01 Jan 2010

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