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This paper discusses the authors work to optimize of the properties of highly nonlinear GexAsySe1-x-y chalcogenide glasses for all-optical signal processing.
We report the first demonstration of error free all-optical signal processing at telecommunication data rates in chalcogenide glass waveguides. We achieve error-free wavelength conversion via cross-phase modulation in a low-loss, 5 cm long As2S3 chalcogenide planar waveguide, over a 25 nm wavelength range at lOGb/s, yielding a Q-factor penalty of 2.3 dB.
The large, ultra-fast Kerr nonlinearity and low nonlinear loss of chalcogenide glasses are attractive for chip based all-optical signal processing. We highlight successes including optical time demultiplexing at 160 Gb/s in As2S3 planar waveguides.
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