title: Multi-format all-optical processing based on a large-scale, hybridly integrated photonic circuit.
abstract: We investigate through numerical studies and experiments the performance of a large scale, silica-on-silicon photonic integrated circuit for multi-format regeneration and wavelength-conversion. The circuit encompasses a monolithically integrated array of four SOAs inside two parallel Mach-Zehnder structures, four delay interferometers and a large number of silica waveguides and couplers. Exploiting phase-incoherent techniques, the circuit is capable of processing OOK signals at variable bit rates, DPSK signals at 22 or 44 Gb/s and DQPSK signals at 44 Gbaud. Simulation studies reveal the wavelength-conversion potential of the circuit with enhanced regenerative capabilities for OOK and DPSK modulation formats and acceptable quality degradation for DQPSK format. Regeneration of 22 Gb/s OOK signals with amplified spontaneous emission (ASE) noise and DPSK data signals degraded with amplitude, phase and ASE noise is experimentally validated demonstrating a power penalty improvement up to 1.5 dB.
authors.affiliation: National Technical University of Athens, Athens, Greece. mpougiou@mail.ntua.gr
authors.forename: M
authors.initials: M
authors.lastname: Bougioukos
authors.forename: Ch
authors.initials: Ch
authors.lastname: Kouloumentas
authors.forename: M
authors.initials: M
authors.lastname: Spyropoulou
authors.forename: G
authors.initials: G
authors.lastname: Giannoulis
authors.forename: D
authors.initials: D
authors.lastname: Kalavrouziotis
authors.forename: A
authors.initials: A
authors.lastname: Maziotis
authors.forename: P
authors.initials: P
authors.lastname: Bakopoulos
authors.forename: R
authors.initials: R
authors.lastname: Harmon
authors.forename: D
authors.initials: D
authors.lastname: Rogers
authors.forename: J
authors.initials: J
authors.lastname: Harrison
authors.forename: A
authors.initials: A
authors.lastname: Poustie
authors.forename: G
authors.initials: G
authors.lastname: Maxwell
authors.forename: H
authors.initials: H
authors.lastname: Avramopoulos