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

Timothy T.Y. Lam; Jong H. Chow; Daniel A. Shaddock; Ian C.M. Littler; Gianluca Gagliardi; Malcolm B. Gray; David E. McClelland

doi:10.1364/AO.49.004029

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

Timothy T.Y. Lam, Jong H. Chow, Daniel A. Shaddock, Ian C.M. Littler, Gianluca Gagliardi, Malcolm B. Gray, David E. McClelland

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

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 H¹³C¹⁴N absorption line is then used as a frequency reference to extract accurate low-frequency strain signals from the locked system.

Original language	English
Pages (from-to)	4029-4033
Number of pages	5
Journal	Applied Optics
Volume	49
Issue number	21
DOIs	https://doi.org/10.1364/AO.49.004029
Publication status	Published - 20 Jul 2010

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abstract = "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 H13C14N absorption line is then used as a frequency reference to extract accurate low-frequency strain signals from the locked system.",

author = "Lam, {Timothy T.Y.} and Chow, {Jong H.} and Shaddock, {Daniel A.} and Littler, {Ian C.M.} and Gianluca Gagliardi and Gray, {Malcolm B.} and McClelland, {David E.}",

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AU - Chow, Jong H.

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AU - Gagliardi, Gianluca

AU - Gray, Malcolm B.

AU - McClelland, David E.

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AB - 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 H13C14N absorption line is then used as a frequency reference to extract accurate low-frequency strain signals from the locked system.

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

Abstract

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