Innovative implementation of the phase-shift method for field measurement of chromatic dispersion

Normand Cyr; Francois Babin; Robert Baribault; Francis Audet; Andre Girard

doi:10.1117/12.481062

29 August 2002 Innovative implementation of the phase-shift method for field measurement of chromatic dispersion

Normand Cyr, Francois Babin, Robert Baribault, Francis Audet, Andre Girard

Author Affiliations +

Proceedings Volume 4909, Network Design and Management; (2002) https://doi.org/10.1117/12.481062
Event: Asia-Pacific Optical and Wireless Communications 2002, 2002, Shanghai, China

Abstract

A new implementation of the modulation phase-shift technique is presented that is well adapted for field use. The method uses measurements of modulation amplitudes to compute relative group delays (RGD). Unlike existing phase-shaft-method implementations, this technique requires no control or calibration of relative phases in the electrical domain. For RGD measurements, a broadband LED emitter - tunable filter receiver combination is used. With this simple set-up, ten RGD measurements taken at 16 different wavelength points (i.e. over 160 measurements) gave standard deviations of 2 to 6 ps. Standard fiber (non-zero dispersion shifted) lengths of over 160 km are accurately measured.

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Normand Cyr, Francois Babin, Robert Baribault, Francis Audet, and Andre Girard "Innovative implementation of the phase-shift method for field measurement of chromatic dispersion", Proc. SPIE 4909, Network Design and Management, (29 August 2002); https://doi.org/10.1117/12.481062

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