All-optical hash code generation and verification for low latency communications

Paquot, Y, Schroeder, J, Pelusi, M and Eggleton, B 2013, 'All-optical hash code generation and verification for low latency communications', Optics Express, vol. 21, no. 20, pp. 23873-23884.


Document type: Journal Article
Collection: Journal Articles

Title All-optical hash code generation and verification for low latency communications
Author(s) Paquot, Y
Schroeder, J
Pelusi, M
Eggleton, B
Year 2013
Journal name Optics Express
Volume number 21
Issue number 20
Start page 23873
End page 23884
Total pages 12
Publisher Optical Society of America
Abstract We introduce an all-optical, format transparent hash code generator and a hash comparator for data packets verification with low latency at high baudrate. The device is reconfigurable and able to generate hash codes based on arbitrary functions and perform the comparison directly in the optical domain. Hash codes are calculated with custom interferometric circuits implemented with a Fourier domain optical processor. A novel nonlinear scheme featuring multiple four-wave mixing processes in a single waveguide is implemented for simultaneous phase and amplitude comparison of the hash codes before and after transmission. We demonstrate the technique with single polarisation BPSK and QPSK signals up to a data rate of 80 Gb/s.
Keyword(s) Amplitude comparison
Arbitrary functions
Code Generation
Code generators
Fourier domains
Low-latency communication
Optical domains
Optical processors
DOI - identifier 10.1364/OE.21.023873
Copyright notice © 2013 Optical Society of America.
ISSN 1094-4087
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Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
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