An architecture of wavelength division multiplexing (WDM) optical packet switching (OPS) router with all-optical
regenerators is proposed. The regenerator based on phase-sensitive amplifier (PSA) can simultaneously provide phase
and amplitude regeneration for quadrature phase-shift keying (QPSK) or differential quadrature phase-shift keying
(DQPSK) signals. The simulation results show that three regenerators are sufficient for an OPS router in a node with a
nodal degree of five to keep blocking probability below 5% and throughput ratio above 95% under different intensities of
self-similar traffic load.
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