Title :
Tunable optical correlator using an optical frequency comb for generating multiple taps in a tapped-delay-line composed of a single nonlinear element
Author :
Ziyadi, M. ; Chitgarha, M.R. ; Khaleghi, S. ; Mohajerin-Ariaei, A. ; Almaiman, A. ; Touch, J.D. ; Tur, Moshe ; Langrock, C. ; Fejer, M.M. ; Willner, Alan E.
Author_Institution :
Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
We experimentally demonstrate a tunable optical correlator to search for multiple patterns among QPSK symbols in 20 Gbuad stream. We use an optical frequency comb to generate coherent signals and add them coherently using a single PPLN waveguide. Multiple patterns with different lengths are successfully searched on QPSK signals.
Keywords :
nonlinear optics; optical correlation; optical delay lines; optical modulation; optical tuning; optical waveguides; quadrature phase shift keying; PPLN waveguide; QPSK symbols; coherent signals; optical frequency comb; tapped-delay-line; tunable optical correlator;
Conference_Titel :
Optical Communication (ECOC 2013), 39th European Conference and Exhibition on
Conference_Location :
London
Electronic_ISBN :
978-1-84919-759-5
DOI :
10.1049/cp.2013.1341
