title: Spectral broadening of a multimode continuous-wave optical field propagating in the normal dispersion regime of a fiber.
abstract: We investigate experimentally and theoretically the broadening of the optical spectrum of a multimode cw field propagating in the normal dispersion regime of a single-mode fiber. The width of the optical spectrum is not a monotonic function of propagation length. This behavior arising from the interplay between the Kerr effect and group-velocity dispersion contrasts with spectral broadening of mode-locked pulses.
authors: Laboratoire de Physique des Lasers, Atomes et Molécules, UMR CNRS, Centre d'Etudes et de Recherches Lasers et Applications, Université des Sciences et Technologies de Lille, France.
authors: B
authors: B
authors: Barviau
authors: S
authors: S
authors: Randoux
authors: P
authors: P
authors: Suret