Open AccessDispersive pulse compression in hollow-core photonic bandgap fibers
Author(s) -
Jesper Lægsgaard,
P. J. Roberts
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.009628
Subject(s) - optics , pulse compression , materials science , photonic crystal fiber , picosecond , dispersion (optics) , pulse (music) , optical fiber , pulse shaping , modal dispersion , nonlinear system , self phase modulation , fiber , nonlinear optics , physics , graded index fiber , fiber optic sensor , telecommunications , laser , radar , quantum mechanics , detector , computer science , composite material
Compression of linearly chirped picosecond pulses in hollow-core photonic bandgap fibers is investigated numerically. The modal properties of the fibers are modeled using the finite-element technique, whereas nonlinear propagation is described by a generalized nonlinear Schrödinger equation, which accounts both for the composite nature of the nonlinearity and the strong mode profile dispersion. Power limits for compression with more than 90% of the pulse energy in the main peak of the compressed pulse are investigated as a function of fiber design, and the temporal and spectral widths of the input pulse. The validity of approximate scaling rules is investigated, and figures of merit for fiber design are discussed.