Method and system for hitless tunable optical processing

Details Method and system for hitless tunable optical processing Method and system for hitless tunable optical processing

2005-06-30

2011-11-22

Bello, Agustin (Department: 2613)

Optical communications

Multiplex

Wavelength division or frequency division

C398S083000

Reexamination Certificate

active

08064769

ABSTRACT:
A method for switching from a first optical path optically coupled to an optical processing device to a second optical path, the first and second optical paths optically connecting, in parallel configuration, a first optical switch to a second optical switch, according to the following steps: directing optical radiation comprising at least a fast operating wavelength through the first optical path to the optical processing device, which is tuned to the first operating wavelength; tuning a resonant all-pass filter optically coupled to the second optical path so as to match, at least at a wavelength adjacent to the first operating wavelength, a phase distortion introduced by the optical processing device on the optical radiation; synchronously actuating the first and the second optical switch so as to switch the optical radiation from the first optical path to the second optical path.

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