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Proceedings Paper

Optical reflection from a free carrier-induced front in a slow light waveguide
Author(s): Mahmoud A. Gaafar; Dirk Jalas; Liam O’Faolain; Juntao Li; Thomas F. Krauss; Alexander Yu. Petrov; Manfred Eich
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Paper Abstract

Dynamic manipulation of light has received considerable attention in recent years. The process of an optical signal undergoing a transition between two modes of a photonic structure is referred to as a photonic transition. We show that a signal wave interacting with a free carrier front in a slow light waveguide experiences indirect photonic transitions leading to reflection from the moving front. Theory and experimental results are presented. The front induced dynamic frequency conversion is also compared to the frequency shifting based on other nonlinear effects like cross-phase modulation and four wave mixing.

Paper Details

Date Published: 26 February 2020
PDF: 7 pages
Proc. SPIE 11285, Silicon Photonics XV, 112850R (26 February 2020); doi: 10.1117/12.2540480
Show Author Affiliations
Mahmoud A. Gaafar, Hamburg Univ. of Technology (Germany)
Menoufia Univ. (Egypt)
Dirk Jalas, Hamburg Univ. of Technology (Germany)
Liam O’Faolain, Univ. of St. Andrews (United Kingdom)
Tyndall National Institute (Ireland)
Cork Institute of Technology (Ireland)
Juntao Li, Sun Yat-Sen Univ. (China)
Thomas F. Krauss, Univ. of York (United Kingdom)
Alexander Yu. Petrov, Hamburg Univ. of Technology (Germany)
ITMO Univ. (Russian Federation)
Manfred Eich, Hamburg Univ. of Technology (Germany)
Max-Planck-Strasse (Germany)

Published in SPIE Proceedings Vol. 11285:
Silicon Photonics XV
Graham T. Reed; Andrew P. Knights, Editor(s)

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