Interferometric Optical Time-Domain Reflectometry for Distributed Optical-Fiber Sensing
Applied Optics, Vol. 37, Issue 24, pp. 5600-5604 (1998)
http://dx.doi.org/10.1364/AO.37.005600
Acrobat PDF (168 KB)
Abstract
The technique of optical time-domain reflectometry is analyzed to determine the effect of an optical phase modulation on light backscattered in an optical fiber. It is shown that the spatial distribution along the fiber of an external phase modulation can be measured with a spatial resolution close to that of optical time-domain reflectometry. A distributed interferometric sensor arrangement that employs this technique is investigated experimentally, and a satisfactory interrogation of more than 1000 resolution intervals is demonstrated.
© 1998 Optical Society of America
[Optical Society of America ]
OCIS Codes
(030.1670) Coherence and statistical optics : Coherent optical effects
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(060.2430) Fiber optics and optical communications : Fibers, single-mode
(060.5060) Fiber optics and optical communications : Phase modulation
(120.3180) Instrumentation, measurement, and metrology : Interferometry
Citation
Sergey V. Shatalin, Vladimir N. Treschikov, and Alan J. Rogers, "Interferometric Optical Time-Domain Reflectometry for Distributed Optical-Fiber Sensing," Appl. Opt. 37, 5600-5604 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-24-5600
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