Patent ID: 9331784
Filing Date: 2016-05-03
CPC Classification: H01S,H04B

Claim Text:
1. A dynamic tunable chromatic dispersion compensator with low latency comprising: a chirped fiber Bragg grating in a compensating optical fiber core, the chirped fiber Bragg grating comprised of wavelength gratings spaced at distances varying with respect to the length of the compensating optical fiber core to compensate for differential delay in a synchronous time protocol for a bidirectional computer data communication link; one or more controllable elements to modify the length of the compensating optical fiber core in response to one or more commands; a first optical junction to optically couple the chirped fiber Bragg grating to an optical fiber of the bidirectional computer data communication link; and a second optical junction optically coupled to a feedback control; wherein an optical signal travels through the first optical junction, and the Bragg grating of the compensating optical fiber, and then through the second optical junction, the one or more commands generated by the feedback control that measures an output pulse of the compensating optical fiber core relative to a filtered version of the output pulse received through the second optical junction to determine one or more adjustments to the length of the compensating optical fiber core.