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Proceedings Paper

Tightly confining AlGaAs waveguides and microcavities for optical frequency conversion
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Paper Abstract

We present the design and fabrication process for an AlGaAs optical frequency conversion device based on tightly confining waveguides and a Photonic Bandgap Crystal Microcavity. We first theoretically analyze the improvement in non-linear conversion efficiency due to a high confinement cavity, compared to traditional QPM waveguides. The theoretical analysis is supported by finite difference frequency and time domain simulations. The theoretical conversion efficiency estimated with these tools is ~4%/mW for a device ~10 μm long. Influence of sidewall roughness on the Q of the cavity is also analyzed. Then, we describe the fabrication process of our device, which involves molecular beam epitaxy, electron beam lithography and plasma etching.

Paper Details

Date Published: 28 May 2004
PDF: 9 pages
Proc. SPIE 5355, Integrated Optics: Devices, Materials, and Technologies VIII, (28 May 2004); doi: 10.1117/12.532124
Show Author Affiliations
Luigi Scaccabarozzi, Stanford Univ. (United States)
Zheng Wang, Stanford Univ. (United States)
Xiaojun Yu, Stanford Univ. (United States)
Wah Tung Lau, Stanford Univ. (United States)
Mehemet Fatih Yanik, Stanford Univ. (United States)
Shanhui Fan, Stanford Univ. (United States)
Martin M. Fejer, Stanford Univ. (United States)
James S. Harris, Stanford Univ. (United States)

Published in SPIE Proceedings Vol. 5355:
Integrated Optics: Devices, Materials, and Technologies VIII
Yakov Sidorin; Ari Tervonen, Editor(s)

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