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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 38, Iss. 22 — Nov. 15, 2013
  • pp: 4659–4662

Measurement method of the relative propagation delay of two signals based on modified caliper ruler

Hon-Tung Luk and Lian-Kuan Chen  »View Author Affiliations


Optics Letters, Vol. 38, Issue 22, pp. 4659-4662 (2013)
http://dx.doi.org/10.1364/OL.38.004659


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Abstract

A novel measurement technique for the relative propagation delay of two signals based on a caliper ruler is proposed. The technique is applied to the chromatic dispersion measurements of single-mode fiber (SMF), dispersion-compensation fiber, and dispersion-shifted fiber. Compared to the conventional time-of-flight method, dispersion can be measured even when the delay difference is smaller than the measurement pulse’s width. The sign of dispersion is preserved during measurement. The scheme also supports the usage of multiple wavelengths simultaneously for fast measurement. Measurement error of less than 0.2ps/(km*nm) in SMF is experimentally demonstrated.

© 2013 Optical Society of America

OCIS Codes
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2300) Fiber optics and optical communications : Fiber measurements
(260.2030) Physical optics : Dispersion

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: July 23, 2013
Revised Manuscript: October 3, 2013
Manuscript Accepted: October 4, 2013
Published: November 8, 2013

Citation
Hon-Tung Luk and Lian-Kuan Chen, "Measurement method of the relative propagation delay of two signals based on modified caliper ruler," Opt. Lett. 38, 4659-4662 (2013)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-38-22-4659


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