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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 21 — Jul. 20, 2010
  • pp: 4029–4033

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, and David E. McClelland  »View Author Affiliations

Applied Optics, Vol. 49, Issue 21, pp. 4029-4033 (2010)

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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.

© 2010 Optical Society of America

OCIS Codes
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(280.0280) Remote sensing and sensors : Remote sensing and sensors

ToC Category:
Instrumentation, Measurement, and Metrology

Original Manuscript: April 8, 2010
Manuscript Accepted: May 26, 2010
Published: July 13, 2010

Timothy T.-Y. Lam, Jong H. Chow, Daniel A. Shaddock, Ian C. M. Littler, Gianluca Gagliardi, Malcolm B. Gray, and David E. McClelland, "High-resolution absolute frequency referenced fiber optic sensor for quasi-static strain sensing," Appl. Opt. 49, 4029-4033 (2010)

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