FIBER BRAGG GRATINGS FOR DISPERSION COMPENSATION IN TRANSMISSION - THEORETICAL-MODEL AND DESIGN CRITERIA FOR NEARLY IDEAL PULSE RECOMPRESSION

We propose a transmission-based dispersion compensator employing an ap odized, unchirped fiber Bragg grating (FBG). A theoretical model for d ispersion compensation in transmission based on the dispersive propert ies of the periodic structure is developed. A figure of merit is defin ed for optimization of the grating parameters for maximum recompressio n of dispersion-broadened optical pulses in long-haul communication sy stems. Numerical examples confirm that nearly perfect compensation wit h very low insertion losses can be achieved for many practical cases o f interest.