DocumentCode
1099190
Title
Demodulation of interferometric sensors using a fiber-optic passive quadrature demodulator
Author
Stowe, David W. ; Hsu, Tsung-yuan
Author_Institution
Gould Labs., Rolling Meadows, IL, USA
Volume
1
Issue
3
fYear
1983
fDate
9/1/1983 12:00:00 AM
Firstpage
519
Lastpage
523
Abstract
The passive quadrature demodulator (PQD) eliminates the phase stretcher and feedback electronics frequently used in fiber interferometric sensors by passively extracting the desired signal using two distinct interferometers which differ in phase by 
. A fusion technique is described to fabricate a fiber PQD which is sufficiently stable with respect to temperature, polarization, and wavelength to maintain the sensitivity of interferometric sensors constant to 0.25 dB.
. A fusion technique is described to fabricate a fiber PQD which is sufficiently stable with respect to temperature, polarization, and wavelength to maintain the sensitivity of interferometric sensors constant to 0.25 dB.Keywords
Optical fiber transducers; Optical interferometry; Optical modulation/demodulation; Demodulation; Interferometers; Magnetic sensors; Optical feedback; Optical fiber couplers; Optical fiber polarization; Optical fiber sensors; Optical interferometry; Optical sensors; Temperature sensors;
fLanguage
English
Journal_Title
Lightwave Technology, Journal of
Publisher
ieee
ISSN
0733-8724
Type
jour
DOI
10.1109/JLT.1983.1072135
Filename
1072135
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