title: Observation of spectral self-imaging by nonlinear parabolic cross-phase modulation.
abstract: We report an experimental demonstration of spectral self-imaging on a periodic frequency comb induced by a nonlinear all-optical process, i.e., parabolic cross-phase modulation in a highly nonlinear fiber. The comb free spectral range is reconfigured by simply tuning the temporal period of the pump parabolic pulse train. In particular, undistorted FSR divisions by factors of 2 and 3 are successfully performed on a 10 GHz frequency comb, realizing new frequency combs with an FSR of 5 and 3.3 GHz, respectively. The pump power requirement associated to the SSI phenomena is also shown to be significantly relaxed by the use of dark parabolic pulses.
authors.forename: Lei
authors.initials: L
authors.lastname: Lei
authors.forename: Jeonghyun
authors.initials: J
authors.lastname: Huh
authors.forename: Luis Romero
authors.initials: LR
authors.lastname: Cortés
authors.forename: Reza
authors.initials: R
authors.lastname: Maram
authors.forename: Benjamin
authors.initials: B
authors.lastname: Wetzel
authors.forename: David
authors.initials: D
authors.lastname: Duchesne
authors.forename: Roberto
authors.initials: R
authors.lastname: Morandotti
authors.forename: José
authors.initials: J
authors.lastname: Azaña