Bandwidth-division in digitally enhanced optical frequency domain reflectometry

doi:10.1364/OE.21.004017

Bandwidth-division in digitally enhanced optical frequency domain reflectometry

Nicolas Riesen, Timothy T.-Y. Lam, and Jong H. Chow »View Author Affiliations

Optics Express, Vol. 21, Issue 4, pp. 4017-4026 (2013)
http://dx.doi.org/10.1364/OE.21.004017

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Abstract

We demonstrate for the first time the use of digital range-gating in OFDR to allow for orders of magnitude reduction in the required sampling rates. This allows for sensing over long lengths of fiber with fast sweeps of the optical source frequency, without requiring impractical sampling rates. The range-gating is achieved using digitally enhanced interferometry (DI), which isolates individual sections of OFDR signal bandwidth. The reductions in sampling rates permitted by the bandwidth-division are demonstrated both numerically and experimentally.

OCIS Codes
(060.2300) Fiber optics and optical communications : Fiber measurements
(060.5060) Fiber optics and optical communications : Phase modulation
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(120.1840) Instrumentation, measurement, and metrology : Densitometers, reflectometers
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(120.3940) Instrumentation, measurement, and metrology : Metrology

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 7, 2012
Revised Manuscript: January 7, 2013
Manuscript Accepted: February 5, 2013
Published: February 11, 2013

Citation
Nicolas Riesen, Timothy T.-Y. Lam, and Jong H. Chow, "Bandwidth-division in digitally enhanced optical frequency domain reflectometry," Opt. Express 21, 4017-4026 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-4-4017

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References

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