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Proceedings Paper

Investigation of on-chip all-optical quantization and novel encoding method: paving the way for optical analog-to-digital conversion chip
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Paper Abstract

On-chip, all-optical quantization based on pulse spectral broadening in a 6 cm long chalcogenide waveguide and subsequent filtering is analyzed. Transfer function is obtained for an 8-level quantizer using 2 nm bandwidth filters. Matrix transformation is used to encode the quantized data into a gray-code. An all-optical implementation of the matrix transformation encoder is proposed based on all-optical Exclusive-OR (XOR) gate. Broad bandwidth supercontinuum generation in a chalcogenide waveguide and optical XOR gate based encoder paves the way for ultra-high bandwidth, high-resolution all-optical analog-to-digital conversion chip.

Paper Details

Date Published: 4 June 2010
PDF: 6 pages
Proc. SPIE 7728, Nonlinear Optics and Applications IV, 772809 (4 June 2010); doi: 10.1117/12.853990
Show Author Affiliations
Ravi Pant, The Univ. of Sydney (Australia)
Chunle Xiong, The Univ. of Sydney (Australia)
Steve Madden, The Australian National Univ. (Australia)
Barry Luther Davies, The Australian National Univ. (Australia)
Benjamin J. Eggleton, The Univ. of Sydney (Australia)

Published in SPIE Proceedings Vol. 7728:
Nonlinear Optics and Applications IV
Benjamin J. Eggleton; Alexander Luis Gaeta; Neil G. R. Broderick, Editor(s)

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