ANALYSIS OF FIBER BRAGG GRATINGS FOR DISPERSION COMPENSATION IN REFLECTIVE AND TRANSMISSIVE GEOMETRIES

Numerical analysis of the dispersion-compensating properties of fiber Bragg gratings (FBG's) in both reflective and transmissive modes is pr esented. First, the sensitivity of chirped, reflective gratings to the grating chirp parameter, index modulation, and grating length is exam ined, showing that apodization provides lower sensitivity to variation s in these parameters. Second, we introduce a new transmissive geometr y for grating-based dispersion compensation that utilizes the dispersi ve properties of a uniform Bragg grating in transmission.