title: Measurement of phase shifts introduced by nonlinear optical phenomena on subpicosecond pulses.
abstract: A new method for the coherent characterization of subpicosecond optical pulses after propagation through a nonlinear medium (i.e., with frequency broadening) is described. The phase shift on a single pulse introduced by the nonlinearity can be measured with a high dynamic range. We report as one application of this technique a measurement of the self-phase modulation incurred by an 800-fsec pulse after the pulse propagates along a dispersive single-mode optical fiber.
authors.forename: F
authors.initials: F
authors.lastname: Reynaud
authors.forename: F
authors.initials: F
authors.lastname: Salin
authors.forename: A
authors.initials: A
authors.lastname: Barthelemy