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Proceedings Paper

Compact variable optical attenuator based on the W type waveguide
Author(s): Wei Qi; Hui Yu; Haifeng Zhou; Jianyi Yang; Minghua Wang; Xiaoqing Jiang
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Paper Abstract

We propose a compact variable optical attenuator (VOA) based on the W type five-layer symmetric slab waveguide. Simulation result shows that: for the attenuator based on GaAlAs/GaAs epitaxial layers, with a refractive index change of -0.01 in the current injection region of 1000 &mgr;m long (corresponding to injected current of about 80mA), an attenuation of more than 30dB is achieved. The attenuation range can be scaled to fit the requirements by varying the electrode length.

Paper Details

Date Published: 8 January 2008
PDF: 6 pages
Proc. SPIE 6838, Optoelectronic Devices and Integration II, 683817 (8 January 2008); doi: 10.1117/12.754244
Show Author Affiliations
Wei Qi, Zhejiang Univ. (China)
Hui Yu, Zhejiang Univ. (China)
Haifeng Zhou, Zhejiang Univ. (China)
Jianyi Yang, Zhejiang Univ. (China)
Minghua Wang, Zhejiang Univ. (China)
Xiaoqing Jiang, Zhejiang Univ. (China)


Published in SPIE Proceedings Vol. 6838:
Optoelectronic Devices and Integration II
Xuping Zhang; Hai Ming; Maggie Yihong Chen, Editor(s)

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