Patent ID: 6710916
Filing Date: 2004-03-23
Classification: G02B,H01S,H04B,H04J

Abstract:
A dispersion compensation element for compensating for dispersion in optical data signals in a signal band on a wavelength-division-multiplexing fiber-optic communications system, comprising:a chirped superstructure fiber grating on a fiber, wherein the chirped superstructure fiber grating has a plurality of grating samples spaced apart along a given length of the fiber, wherein each grating sample has a plurality of grating periods, wherein the grating periods are chirped due to a first chirp contribution and a second chirp contribution, wherein the first chirp contribution gives rise to a chirp that varies from one amount of chirp to another amount of chirp along the given length of fiber, and wherein the second chirp contribution varies from a first amount of chirp to a second amount of chirp across each of the grating samples.