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Proceedings Paper

Photonic bandgap structures in planar nonlinear waveguides: application to second harmonic generation
Author(s): Devid Pezzetta; Concita Sibilia; Mario Bertolotti; Joseph W. Haus; Michael Scalora; Mark J. Bloemer; Charles M. Bowden
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Paper Abstract

Second harmonic generation (SHG) in planar nonlinear waveguides is investigated under conditions for which the use of a linear grating fabricate don top of the waveguide reproduces a photonic band-gap structure. The fundamental mode of the guide, at the fundamental frequency, is tuned at the photonic band edge resonance thus experiencing a great confinement and enhancement of the electromagnetic field inside the structure. The linear grating alone is however not able to produce both field confinement and phase- matching of the SHG process. Phase-matching is obtained by an additional modulation of the non linear susceptibility (chi) (2), as in the conventional quasi-phase-matching scheme. The conversion efficiency achieved using both linear and nonlinear gratings is orders of magnitude greater than that of a quasi-phase-matched device of the same length.

Paper Details

Date Published: 15 May 2001
PDF: 13 pages
Proc. SPIE 4277, Integrated Optics Devices V, (15 May 2001); doi: 10.1117/12.426794
Show Author Affiliations
Devid Pezzetta, INFM (Italy) and Univ. degli Studi di Roma La Sapienza (Italy)
Concita Sibilia, INFM (Italy) and Univ. degli Studi di Roma La Sapienza (Italy)
Mario Bertolotti, INFM (Italy) and Univ. degli Studi di Roma La Sapienza (Italy)
Joseph W. Haus, Univ. of Dayton (United States)
Michael Scalora, U.S. Army Aviation and Missile Command and Time Domain Corp. (United States)
Mark J. Bloemer, U.S. Army Aviation and Missile Command (United States)
Charles M. Bowden, U.S. Army Aviation and Missile Command (United States)

Published in SPIE Proceedings Vol. 4277:
Integrated Optics Devices V
Giancarlo C. Righini; Seppo Honkanen, Editor(s)

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