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Proceedings Paper

All-optical signal processing in photonic crystals covered with fast nonlinear materials
Author(s): Eugene Ya. Glushko; Alexander E. Glushko; Vladimir N. Evteev; Alexander N. Stepanyuk
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Paper Abstract

In our work, we considered theoretically 1D and 2D photonic bandgap (PBG) systems containing nonlinear covers with short response time in femtosecond area. The short signal passing through the PBG system the angular total reflection area was calculated by FDTD, transfer matrix and perturbation theory methods. The photonic structure vs intensity behaviour was investigated for a few systems consisting of periodically layered structures covered with an optically nonlinear material. Theoretical estimations of the logical gate parameters were made for linear 2D Si-SiO2 , Si-air and Ge-Se photonic crystals covered with the nonlinear doped glass. It was shown that the beam angular-frequency diagrams contain extremely sensitive areas inside the total reflection range, where the weak nonlinearity leads to dramatic change in light reflection and transmission. Two principal schemes of all-optical logical devices were analyzed and possible applications in all-optical adders and logical gates were discussed.

Paper Details

Date Published: 22 February 2008
PDF: 11 pages
Proc. SPIE 6889, Physics and Simulation of Optoelectronic Devices XVI, 688919 (22 February 2008); doi: 10.1117/12.762888
Show Author Affiliations
Eugene Ya. Glushko, Institute of Semiconductor Physics (Ukraine)
Alexander E. Glushko, Institute of Semiconductor Physics (Ukraine)
Univ. of Leoben (Austria)
Vladimir N. Evteev, Krivoy Rog State Pedagogical Univ. (Ukraine)
Alexander N. Stepanyuk, Krivoy Rog State Pedagogical Univ. (Ukraine)

Published in SPIE Proceedings Vol. 6889:
Physics and Simulation of Optoelectronic Devices XVI
Marek Osinski; Fritz Henneberger; Keiichi Edamatsu, Editor(s)

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