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

Ravi Pant; Chunle Xiong; Steve Madden; Barry Luther Davies; Benjamin J. Eggleton

doi:10.1117/12.853990

4 June 2010 Investigation of on-chip all-optical quantization and novel encoding method: paving the way for optical analog-to-digital conversion chip

Ravi Pant, Chunle Xiong, Steve Madden, Barry Luther Davies, Benjamin J. Eggleton

Author Affiliations +

Proceedings Volume 7728, Nonlinear Optics and Applications IV; 772809 (2010) https://doi.org/10.1117/12.853990
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

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.

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Ravi Pant, Chunle Xiong, Steve Madden, Barry Luther Davies, and Benjamin J. Eggleton "Investigation of on-chip all-optical quantization and novel encoding method: paving the way for optical analog-to-digital conversion chip", Proc. SPIE 7728, Nonlinear Optics and Applications IV, 772809 (4 June 2010); https://doi.org/10.1117/12.853990

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KEYWORDS

Optical filters

Computer programming

Waveguides

Quantization

Linear filtering

Chalcogenides

Nonlinear filtering

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