We experimentally study the dynamics of the generation of multiple sidebands by means of a quasi-phase-matched four-wave mixing (FWM) process occurring in a dispersion-oscillating, highly nonlinear optical fiber. The fiber under test is pumped by a ns microchip laser operating in the normal average group-velocity dispersion regime and in the telecom C band. We reveal that the growth of higher-order sidebands is strongly influenced by the competition with cascade FWMbetween the pump and the first-order quasi-phase matched sidebands. The properties of these competing FWM processes are substantially affected when a partially coherent pump source is used, leading to a drastic reduction of the average power needed for sideband generation.
Competing four-wave mixing processes in dispersion oscillating telecom fiber / C., Finot; J., Fatome; A., Sysoliatin; A., Kosolapov; Wabnitz, Stefan. - In: OPTICS LETTERS. - ISSN 0146-9592. - 38:(2013), pp. 5361-5364. [10.1364/OL.38.005361]
Competing four-wave mixing processes in dispersion oscillating telecom fiber
WABNITZ, Stefan
2013
Abstract
We experimentally study the dynamics of the generation of multiple sidebands by means of a quasi-phase-matched four-wave mixing (FWM) process occurring in a dispersion-oscillating, highly nonlinear optical fiber. The fiber under test is pumped by a ns microchip laser operating in the normal average group-velocity dispersion regime and in the telecom C band. We reveal that the growth of higher-order sidebands is strongly influenced by the competition with cascade FWMbetween the pump and the first-order quasi-phase matched sidebands. The properties of these competing FWM processes are substantially affected when a partially coherent pump source is used, leading to a drastic reduction of the average power needed for sideband generation.File | Dimensione | Formato | |
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