Highly nonlinear chalcogenide fibres for all-optical signal processing
Optical and Quantum Electronics(2008)
摘要
Chalcogenide glasses offer many attractive properties for all-optical signal processing including large Kerr nonlinearity (up to 500 × silica glass), an intrinsic ultrafast response time and low to moderate two-photon absorption (TPA). These properties together with the convenience of a fibre format allow us to achieve all-optical signal processing at low peak power and in a very compact form. In this paper, several nonlinear processing functions will be demonstrated including: femto-second pedestal free, pulse compression; all-optic wavelength conversion; and all-optical regenerator. In addition, we show enhanced nonlinearity for more efficient signal processing by tapering the As 2 Se 3 fibre. These applications show chalcogenide glass fibres are very promising candidate materials for nonlinear all-optic signal processing.
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关键词
all-optical signal processing,self-phase modulation,nonlinear glass material
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