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Continuous Wave Supercontinuum Generation Aided by a Weaker Pulse Laser

Fernandes, G. ; Facão, M. ; Carvalho, M. I. ; Rodrigues, S. ; Heidarialamdarloo, J. ; Pinto, A. N. ; Ferreira, M.

Continuous Wave Supercontinuum Generation Aided by a Weaker Pulse Laser, Proc SPIE Photonics Europe, Brussels, Belgium, Vol. 8434, pp. 1 - 9, April, 2012.

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The supercontinum generation has been achieved mainly by two different approaches, namely, with femtosecond
intense pulses or using a continuous wave laser or larger pulses centered on the anomalous dispersion region. In
order to improve temporal coherence, it has been suggested the introduction of a pulse seed or the propagation
of both a large pulse pump and a small weaker continuous wave to control the soliton fission. Here we propose
supercontinuum generation using a hybrid input, we pump with a continuous laser and copropagate a picosecond
signal. We compare the bandwidth of the supercontinuum using only the continuous pump or the hybrid setup.
Simulations of the generalized Schrodinger equation, using an adequate input-noise model to reproduce the
spectrum of the continuous signal, are performed in order to investigate the supercontinuum generation in the
optical communication window under different dispersion regimes.