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Demonstration of WDM weighted addition for principal component analysis

Author(s): Tait, AN; Chang, J; Shastri, BJ; Nahmias, MA; Prucnal, Paul R

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Abstract: We consider an optical technique for performing tunable weighted addition using wavelength-division multiplexed (WDM) inputs, the enabling function of a recently proposed photonic spike processing architecture [J. Lightwave Technol., 32 (2014)]. WDM weighted addition provides important advantages to performance, integrability, and networking capability that were not possible in any past approaches to optical neurocomputing. In this letter, we report a WDM weighted addition prototype used to find the first principal component of a 1Gbps, 8-channel signal. Wideband, multivariate techniques have immediate relevance to modern radio systems, and photonic spike processing networks enabled by WDM could open new domains of information processing that bring unprecedented bandwidth and intelligence to problems in radio communications, ultrafast control, and scientific computing.
Publication Date: 6-May-2015
Electronic Publication Date: 6-May-2015
Citation: Tait, AN, Chang, J, Shastri, BJ, Nahmias, MA, Prucnal, PR. (2015). Demonstration of WDM weighted addition for principal component analysis. Optics Express, 23 (12758 - 12765. doi:10.1364/OE.23.012758
DOI: doi:10.1364/OE.23.012758
Pages: 12758 - 12765
Type of Material: Journal Article
Journal/Proceeding Title: Optics Express
Version: Final published version. This is an open access article.

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