High-resolution absolute frequency referenced fiber optic sensor for quasi-static strain sensing

High-resolution absolute frequency referenced fiber optic sensor for quasi-static strain sensing

We present a quasi-static fiber optic strain sensing system capable of resolving signals below nanostrain from 20 mHz. A telecom-grade distributed feedback CW diode laser is locked to a fiber Fabry-Perot sensor, transferring the detected signals onto the laser. An H(13)C(14)N absorption line is then...

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Veröffentlicht in:Applied Optics 2010-07, Vol.49 (21), p.4029-4033
Hauptverfasser: Lam, Timothy T-Y, Chow, Jong H, Shaddock, Daniel A, Littler, Ian C M, Gagliardi, Gianluca, Gray, Malcolm B, McClelland, David E
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Sprache:eng
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ABSORPTION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
FABRY-PEROT INTERFEROMETER
FEEDBACK
FIBERS
LASER RADIATION
RESOLUTION
SENSORS
STRAINS
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container_end_page 4033
container_issue 21
container_start_page 4029
container_title Applied Optics
container_volume 49
creator Lam, Timothy T-Y
Chow, Jong H
Shaddock, Daniel A
Littler, Ian C M
Gagliardi, Gianluca
Gray, Malcolm B
McClelland, David E
description We present a quasi-static fiber optic strain sensing system capable of resolving signals below nanostrain from 20 mHz. A telecom-grade distributed feedback CW diode laser is locked to a fiber Fabry-Perot sensor, transferring the detected signals onto the laser. An H(13)C(14)N absorption line is then used as a frequency reference to extract accurate low-frequency strain signals from the locked system.
doi_str_mv 10.1364/ao.49.004029
format Article
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source Alma/SFX Local Collection; Optica Publishing Group Journals
subjects ABSORPTION
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
FABRY-PEROT INTERFEROMETER
FEEDBACK
FIBERS
LASER RADIATION
RESOLUTION
SENSORS
STRAINS
title High-resolution absolute frequency referenced fiber optic sensor for quasi-static strain sensing
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