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

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Date

2010-07-20

Authors

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

Journal Title

Journal ISSN

Volume Title

Publisher

Optical Society of America

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.

Description

Keywords

quasi-static, fiber, optic, strain, nanostrain

Citation

URI

http://hdl.handle.net/1885/100844

Collections

ANU Research Publications

Source

Applied Optics

Type

Journal article

Book Title

Entity type

Access Statement

Open Access

License Rights

DOI

10.1364/AO.49.004029

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