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Proceedings Paper

Simulation of integrated coupled nonlinear microring resonators all-optical pulse restorer
Author(s): Yannick Dumeige; Laura Ghişa; Thi Kim Ngân Nguyên; Patrice Féron
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Paper Abstract

We numerically demonstrate the feasibility of constructing an all-optical pulse restorer by using a microresonator structure with Kerr nonlinearity. We obtain a clear nonlinear power transfer curve suitable for all-optical regeneration (reshaping) in the frequency and the time domains. The fully integrated device is based on 2 cascaded sets of finite chains of 3 coupled nonlinear identical microring resonators side coupled with 3 straight waveguides. The microrings are constituted by the same instantaneous, dispersive, local Kerr material. The first set suppresses the noise in "0" and the second limits the amplitude fluctuations in "1" of return-to-zero optical data streams. For a device made in p-toluene sulphonate (PTS) with n2 = 2.2×10-12 cm2/W with linear losses α = -5 dB/cm and nonlinear losses α2 = 0.5 cm/GW and considering amplitude, jitter and width fluctuations we evaluate an amplitude Q-factor improvement of 4.94 dB for a data rate of 40 Gb/s and input intensity n2I0 = 5 × 10-4. Since we take advantage from field enhancement at resonance, this integrated reshaper could be much smaller than other gates based on nonlinear fibers or waveguides.

Paper Details

Date Published: 12 February 2008
PDF: 9 pages
Proc. SPIE 6896, Integrated Optics: Devices, Materials, and Technologies XII, 68960S (12 February 2008); doi: 10.1117/12.763593
Show Author Affiliations
Yannick Dumeige, ENSSAT-FOTON, CNRS-UMR 6082, Univ. de Rennes (France)
Laura Ghişa, ENSSAT-FOTON, CNRS-UMR 6082, Univ. de Rennes (France)
Thi Kim Ngân Nguyên, ENSSAT-FOTON, CNRS-UMR 6082, Univ. de Rennes (France)
Patrice Féron, ENSSAT-FOTON, CNRS-UMR 6082, Univ. de Rennes (France)

Published in SPIE Proceedings Vol. 6896:
Integrated Optics: Devices, Materials, and Technologies XII
Christoph M. Greiner; Christoph A. Waechter, Editor(s)

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