title: Reconfigurable optical differential phase-shift-keying pattern recognition based on incoherent photonic processing.
abstract: We propose and experimentally demonstrate asynchronous optical differential phase-shift-keying (DPSK) pattern recognition using a fully reconfigurable technique. The proposed method uses optical phase-to-bipolar intensity conversion through all-optical differentiation in conjunction with an incoherent time-spectrum convolution system where the pattern to be recognized is implemented directly in the spectral domain through optical amplitude-only linear filtering. Full reconfigurability in terms of bit rate, pattern sequence, and pattern length is achieved using electronically programmable optical filters. We demonstrate dynamically switching recognition of different 64 bit patterns in a continuous 12 Gb/s DPSK pseudorandom optical bit stream with contrast ratio up to 3.8 dB.
authors: Institut National de la Recherche Scientifique, Énergie Matériaux Télécommunications, 1650 Lionel-Boulet, Varennes J3X1S2, Quebec, Canada. malacarne@emt.inrs.ca
authors: Antonio
authors: A
authors: Malacarne
authors: Reza
authors: R
authors: Ashrafi
authors: Yongwoo
authors: Y
authors: Park
authors: José
authors: J
authors: Azaña