NDLI: A Parallel Multiplexed Temperature Sensor System Using Bragg-Grating-Based Fiber Lasers

Content Provider	IEEE Xplore Digital Library
Author	Mandal, J. Tong Sun Grattan, K.T.V. Rui Tao Zheng Nam Quoc Ngo Augousti, A.T.
Copyright Year	2001
Abstract	A parallel multiplexed temperature sensor scheme using a Bragg grating-based fiber laser approach has been developed and evaluated. Multiple laser cavities were formed as the active gain media of the system using a common broadband chirped fiber Bragg grating (CFBG) and several normal FBGs, which were used as optical feedback elements, in conjunction with different lengths of erbium-doped fibers (EDFs). These gain media were externally pumped by light from a 1480-nm laser diode (LD) through a 1480-nm 1 times 4 splitter. Normal FBGs were used as the wavelength-selective and sensing elements of the laser system. Simultaneous laser action at three different wavelengths corresponding to channels 1, 3, and 4, respectively, was obtained using this scheme. The temperature was measured over the range from room temperature (27 degC) to a maximum of 540 degC, which shows the potential of the scheme for quasi-distributed sensor applications
Sponsorship	IEEE Sensors Council
Starting Page	986
Ending Page	995
Page Count	10
File Size	1127240
File Format	PDF
ISSN	1530437X
Volume Number	6
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature sensors Optical fiber sensors Fiber lasers Erbium-doped fiber lasers Laser feedback Fiber gratings Bragg gratings Pump lasers Temperature distribution Temperature measurement multiplexed sensor interrogation Chirped fiber Bragg grating (CFBG) erbium-doped fiber (EDF) fiber Bragg gratings (FBGs) fiber laser temperature sensor
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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