Pant, Ravi; Xiong, Chunle; Madden, Steve; Luther-Davies, Barry; Eggleton, Benjamin J
We have investigated all-optical analog-to-digital quantization by broadening the pulse spectrum in a chalcogenide (As2S3) waveguide and subsequently slicing the measured spectrum using an array of filters. Pulse spectral broadening was measured for 8 different power levels in a 6 cm long As2S3 waveguide and used to analyze an 8-level all-optical quantization scheme employing filters with full-width at half-maximum (FWHM) bandwidth of 2 nm. A supercontinuum spectrum with -15 dB spectral width...[Show more]
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