title: Ultrashort pulse propagation in multiple-grating fiber structures.
abstract: We propose a multiple-grating fiber structure that decomposes an ultrashort broadband optical pulse simultaneously in both wavelength and time. As an initial demonstration, we used a transform-limited 1-ps Gaussian pulse centered at 1.55 mu;m as the ultrashort broadband input into a three-grating fiber structure and generated three output pulses separated in wavelength and time with good correlation between experimental results and simulations. This device structure can be used to generate a multiwavelength train of pulses for use in wavelength-division-multiplexed systems or to implement frequency-domain encoding of coherent pulses for optical code-division multiple access.
authors.forename: L R
authors.initials: LR
authors.lastname: Chen
authors.forename: S D
authors.initials: SD
authors.lastname: Benjamin
authors.forename: P W
authors.initials: PW
authors.lastname: Smith
authors.forename: J E
authors.initials: JE
authors.lastname: Sipe
authors.forename: S
authors.initials: S
authors.lastname: Juma