Open AccessIntegrated 10 Gb/s AWG-based correlator for multi-wavelength optical header recognition
Author(s) -
Muhsen Aljada,
Kamal Alameh
Publication year - 2008
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.16.005150
Subject(s) - arrayed waveguide grating , optics , header , optical correlator , wavelength , waveform , autocorrelation , wavelength division multiplexing , physics , computer science , materials science , fourier transform , telecommunications , mathematics , computer network , radar , statistics , quantum mechanics
In this paper we experimentally demonstrate a novel optical correlator employing dual integrated Arrayed Waveguide Grating (AWG) in conjunction with variable delay lines. The variable delay lines provide wavelength-dependent time delays and generate a wavelength profile that matches arbitrary bit patterns, whereas the AWGs are used to demultiplex and multiplex the wavelength components of the multi-wavelength header bit pattern. The recognition of 4-bit optical patterns at different wavelengths is experimentally demonstrated at 10 Gb/s by showing that the correlator produces an autocorrelation waveform of high peak whenever the input bit pattern matches the wavelengths profile, and a low-amplitude cross-correlation function otherwise.