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