Patent ID: 7689077
Filing Date: 2010-03-30
Classification: G02B,H04B

Abstract:
1. A chromatic dispersion compensator with low differential delay 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; and an optical junction to optically couple the chirped fiber Bragg grating to an optical fiber of the bidirectional computer data communication link, wherein the chirped fiber Bragg grating reduces chromatic dispersion of an optical pulse received at the chromatic dispersion compensator from the optical fiber coupled to the optical junction via reflecting longer wavelengths of the optical pulse through an optically shorter path of the chirped fiber Bragg grating and reflecting shorter wavelengths of the optical pulse through an optically longer path of the chirped fiber Bragg grating, and further wherein the optical pulse includes synchronous time protocol data in the shorter wavelengths and in the longer wavelengths, and the synchronous time protocol is a server time protocol that embeds time stamps in data streams between servers in communication via the optical fiber coupled to the optical junction.