High-resolution measurement of fiber length by using a mode-locked fiber laser configuration
Optics Letters, Vol. 32, Issue 12, pp. 1605-1607 (2007)
http://dx.doi.org/10.1364/OL.32.001605
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Abstract
A simple method to precisely measure fiber length has been experimentally demonstrated by using a mode-locked fiber laser configuration. Since the transit time in a cavity is exactly proportional to the cavity length, it is easy to obtain the fiber length from the generation of mode-locked pulses in the fiber laser with a long-range nonlinear optical loop mirror that includes the measured fiber. Our new method has a large measurement range, over hundreds of kilometers, and a high resolution, of the order of centimeters, as well as no measurement dead zone.
© 2007 Optical Society of America
OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(140.3510) Lasers and laser optics : Lasers, fiber
(140.4050) Lasers and laser optics : Mode-locked lasers
ToC Category:
Fiber Optics and Optical Communications
History
Original Manuscript: January 3, 2007
Revised Manuscript: March 27, 2007
Manuscript Accepted: April 3, 2007
Published: June 5, 2007
Citation
Y. L. Hu, L. Zhan, Z. X. Zhang, S. Y. Luo, and Y. X. Xia, "High-resolution measurement of fiber length by using a mode-locked fiber laser configuration," Opt. Lett. 32, 1605-1607 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-12-1605
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