Pulse train generation by soliton fission in highly nonlinear chalcogenide (As2S3) waveguide Bragg grating
Date
2009
Authors
Baker, Neil J
Roelens, M
Madden, Steve
Luther-Davies, Barry
de Sterke, C Martijn
Eggleton, Benjamin J
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Publisher
Institute of Electrical and Electronics Engineers (IEEE Inc)
Abstract
The conversion of a 3.9ps optical pulse into a train of six 450fs pulses within a 37mm length of a highly nonlinear chalcogenide (As2S 3) waveguide Bragg grating is reported. Here, the initial pulse develops into a sixth-order soliton and is split into its six fundamental solitons through soliton fission. The very large optical nonlinearity and strong photosensitivity of As2S3 enables the use of pulses that are 25×shorter than in previous experiments, and have 500×less energy. The results are compared to numerical modelling using the nonlinear coupled mode equations and find satisfactory agreement between experiment and theory after accounting for imperfections observed in the grating.
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Keywords
Keywords: A-train; Fs pulse; Fundamental solitons; Highly nonlinear; Large optical nonlinearities; Nonlinear coupled-mode equations; Numerical modelling; Optical pulse; Pulse-train generation; Soliton fission; Waveguide Bragg grating; Light transmission; Nonlinear
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Source
Electronics Letters
Type
Journal article
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2037-12-31
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