Abstract

Optical communication systems at high repetition rates require all-optical techniques for multiplication and manipulation of ultrafast short pulses. The most widely used methods for optical processing are based on filtering of spatially dispersed pulses, either in bulk or arrayed-waveguide configurations [1]. In a recent work [2(a)] we theoretically proposed the use of a linearly-chirped fiber Bragg grating (FBG) for the simultaneous reshaping and repetition-rate multiplication of optical pulse trains generated from a conventional mode-locked laser, in which pulse multiplication is achieved by means of the temporal Talbot effect of the dispersive grating [2(b)] and pulse reshaping is provided by the specially tailored spectral reflectivity profile of the grating.

© 2001 EPS