Optical structure for the compensation of chromatic...

Details Optical structure for the compensation of chromatic... Optical structure for the compensation of chromatic...

H - Electricity

04

B

H04B 10/18 (2006.01) G02B 6/34 (2006.01) G02F 1/01 (2006.01)

Patent

CA 2417317

A dispersion compensator for the compensation of chromatic dispersion in a multi-channel light signal is provided. The compensator includes a pair of optical structures each having a waveguide and a Bragg crating provided therein. The Bragg grating has a plurality of grating components, each associated with one or a few of the channels to be compensated. An optical assembly propagates the light signal sequentially through both optical structures. The periods of the grating components are selected to allow compensation of chromatic dispersion experienced by this particular channel or these particular channels, thereby taking into account the dispersion slope of the light signal. Tuning means are also provided in order to adjust the dispersion of the grating components of each optical structures, and proper selection of the tuning parameters allows tuning independently both the dispersion and dispersion slope.

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