Coherent control of short pulses using fibre Bragg gratings

In this paper we demonstrate the application of fibre Bragg gratings (FBGs) to coherent control of short optical pulses. Specifically, we demonstrate the use of a superstructure FBG to achieve multiplication of the repetition rate of a 10 GHz pulse train to 40 GHz, and in a separate experiment use of such a grating as an elementary code-division multiple access (CDMA) encoder and decoder.