Measurement of polarization mode dispersion

Details Measurement of polarization mode dispersion Measurement of polarization mode dispersion

G - Physics

01

M

G01M 11/02 (2006.01) G01M 11/00 (2006.01)

Patent

CA 2219286

A method is provided for high resolution measurement of Polarization Mode Dispersion (PMD) of an optic fiber (26), comprising the steps of: providing a Polarization Mode Dispersion measuring instrument with a light source (10); providing a test fiber (26); arranging the artefact (28) having a stable known Polarization Mode Dispersion value in series with the test fiber (26); transmitting light from the light source (10) through the artefact (28) and the test fiber (26); measuring a biased Polarization Mode Dispersion value with the Polarization Mode Dispersion measuring instrument biased away from a zero Polarization Mode Dispersion value; and determining the Polarization Mode Dispersion of the optic fiber from the biased measured Polarization Mode Dispersion value.

Procédé permettant d'effectuer la mesure à haute résolution de la dispersion en mode de polarisation d'une fibre optique (26). Ce procédé consiste à utiliser un instrument de mesure de la dispersion en mode de polarisation comprenant une source de lumière (10); à utiliser une fibre test (26); à disposer en série avec la fibre test (26) un artefact (28) possédant une valeur de dispersion en mode de polarisation stable et connue; à mesurer une valeur soumise à polarisation de la dispersion en mode de polarisation avec l'instrument de mesure de la dispersion en mode de polarisation, polarisée loin d'une valeur zéro de la dispersion en mode de polarisation; et à déterminer la dispersion en mode de polarisation de la fibre optique à partir de la valeur soumise à polarisation mesurée de la dispersion en mode de polarisation.

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