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Proceedings Paper

Innovative implementation of the phase-shift method for field measurement of chromatic dispersion
Author(s): Normand Cyr; Francois Babin; Robert Baribault; Francis Audet; Andre Girard
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Paper 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.

Paper Details

Date Published: 29 August 2002
PDF: 9 pages
Proc. SPIE 4909, Network Design and Management, (29 August 2002); doi: 10.1117/12.481062
Show Author Affiliations
Normand Cyr, EXFO Electro-Optical Engineering (Canada)
Francois Babin, EXFO Electro-Optical Engineering (Canada)
Robert Baribault, EXFO Electro-Optical Engineering (Canada)
Francis Audet, EXFO Electro-Optical Engineering (Canada)
Andre Girard, EXFO Electro-Optical Engineering (Canada)


Published in SPIE Proceedings Vol. 4909:
Network Design and Management
Qian Mao; Shoa-Kai Liu; Kwok-wai Cheung, Editor(s)

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