High-speed optical bit-pattern recognition employing fibre Bragg grating and Opto-VLSI processing

Authors

Muhsen Aljada, Edith Cowan University
Kamal Alameh, Edith Cowan UniversityFollow
Rong Zheng, Edith Cowan University
Khalid Al-Begain

Document Type

Journal Article

Keywords

Pattern recognition, Optical correlators, Packet switching, Fibre Bragg gratings, Optical communication

Publisher

Elsevier

Faculty

Faculty of Computing, Health and Science

School

Electron Science Research Institute (ESRI)

RAS ID

5167

Comments

Aljada, M. , Alameh, K. , Zheng, R. , & Al-Begain, K. (2006). High-speed optical bit-pattern recognition employing fibre Bragg grating and Opto-VLSI processing. Optics Communications, 265(2), 468-475. Available here

Abstract

We propose a novel optical bit-pattern recognition employing an Opto-VLSI processor in conjunction with an array of fibre Bragg gratings (FBGs) with different Bragg wavelengths and a coherent-to-incoherent light converter. The FBG array slices the spectrum of the incoherent optical header and provides wavelength-dependent time delays, whereas the Opto-VLSI processor generates wavelength intensity profiles that match specific bit patterns. The recognition of 8-bit optical patterns is experimentally demonstrated at 2.2 Gb/s by showing that the correlator produces an autocorrelation waveform of high peak whenever the input bit pattern matches the wavelength intensity profile.