title: Ambiguity function analysis of pulse train propagation: applications to temporal Lau filtering.
abstract: We use the periodic-signal ambiguity function for visualizing the intensity-spectrum evolution through propagation in a first-order dispersive medium. We show that the degree of temporal coherence of the optical source plays the role of a low-pass filter on the signal's ambiguity function. Based on this, we present a condition on the temporal Lau effect for filtering harmonics at fractions of the Talbot length. This result allows one to increase the repetition rate of a pulse train obtained from a sinusoidally phase-modulated CW signal.
authors.affiliation: Grup de Recerca d'Optica de Castelló, Departament de Física, Universitat Jaume 1, Castelló, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Ojeda-Castañeda
authors.forename: Jesús
authors.initials: J
authors.lastname: Lancis
authors.forename: Cristina M
authors.initials: CM
authors.lastname: Gómez-Sarabia
authors.forename: Víctor
authors.initials: V
authors.lastname: Torres-Company
authors.forename: Pedro
authors.initials: P
authors.lastname: Andrés