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Optics Letters

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  • Vol. 23, Iss. 24 — Dec. 15, 1998
  • pp: 1930–1932

Highly sensitive dynamic strain measurements by locking lasers to fiber Bragg gratings

B. Lissak, A. Arie, and M. Tur  »View Author Affiliations


Optics Letters, Vol. 23, Issue 24, pp. 1930-1932 (1998)
http://dx.doi.org/10.1364/OL.23.001930


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Abstract

A novel, sensitive, simple, and robust strain interrogation technique is analyzed and experimentally tested. By locking a laser wavelength to the midreflection wavelength of a standard fiber Bragg grating and measuring the error signal, we achieve high dynamic strain sensitivity of 45 picostrain/√Hz rms at 3 kHz, where the dominant noise in the experiment is the laser frequency noise.

© 1998 Optical Society of America

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.1480) Optical devices : Bragg reflectors

Citation
B. Lissak, A. Arie, and M. Tur, "Highly sensitive dynamic strain measurements by locking lasers to fiber Bragg gratings," Opt. Lett. 23, 1930-1932 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-24-1930


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References

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