title: Second-order coherence of supercontinuum light.
abstract: We analyze the coherence properties of supercontinuum generated in photonic crystal fibers by applying the second-order coherence theory of nonstationary light. Using an ensemble of simulated realizations, we construct two-frequency cross-spectral density and two-time mutual coherence functions. This allows us to introduce measures of temporal and spectral coherence. We show that, in the long-pulse regime, supercontinuum light can be decomposed into a sum of coherent and quasi-stationary contributions. Our approach and findings are also applicable in the short-pulse regime.
authors.affiliation: Tampere University of Technology, Optics Laboratory, P.O. Box 692, FI-33101 Tampere, Finland. goery.genty@tut.fi
authors.forename: Goëry
authors.initials: G
authors.lastname: Genty
authors.forename: Minna
authors.initials: M
authors.lastname: Surakka
authors.forename: Jari
authors.initials: J
authors.lastname: Turunen
authors.forename: Ari T
authors.initials: AT
authors.lastname: Friberg