Fiber hartley transform and optical indirect computation of discrete cosine transform

Authors:
Michela Svaluto Moreolo;Gabriella Cincotti
Affiliations:
Centre Tecnológic de Telecomunicacions de Catalunya, Castelldefels, Barcelona, Spain;Department of Applied Electronics, University Roma Tre, Rome, Italy
Venue:
IEEE Transactions on Communications
Year:
2010

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Abstract

We present a recursive approach to implement the Discrete Hartley Transform in the optical domain by using a passive fiber network of asymmetric couplers, without phase shifters. The optical implementation of Discrete Cosine Transform is also derived, resulting in effective and flexible tools for optical data compression and signal processing.