NDLI: Polarization-sensitive intermodal all-fiber sensor using spectrally resolved detection

Content Provider	IEEE Xplore Digital Library
Author	Bock, W.J. Eftimov, T.A.
Copyright Year	1999
Description	Author affiliation: Lab. d'Optoelectron. Ind., Quebec Univ., Hull, Que., Canada (Bock, W.J.)
Abstract	In this paper we report on the principle of operation of a novel detection scheme for fiber-optic sensors allowing for low-noise simultaneous retrieval of X- and Y-polarized intermodal responses which greatly facilitates conducting two parameter measurement. The scheme is based on powering the sensor using a depolarized partly coherent optical source. It provides low-noise signals and allows for simple simultaneous detection of two channels, for independent phase presetting and for conducting relative measurements. All these features are achieved by spectrally resolving the signal exiting from the sensor and measuring the responses at two different wavelengths. The use of depolarized excitation allows for a low-noise detection while the spectral decoding permits employing a more sophisticated phase tracking in the system.
Starting Page	1603
Ending Page	1607
File Size	475696
Page Count	5
File Format	PDF
ISBN	0780352769
ISSN	10915281
DOI	10.1109/IMTC.1999.776095
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-05-24
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical fiber polarization Optical fiber sensors Wavelength measurement Optical sensors Optical feedback Phase detection Signal processing Phase measurement Signal resolution Laser feedback
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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