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Proceedings Paper

Recent progress in silicon-based optical waveguide switches
Author(s): Baojun Li
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Paper Abstract

Optical switches are key components for applications in 1.31/1.55 µm optical communications, networks and microsystems. They can reduce the cost of the network and increase fiber transmission capacity and at the same time, distribute optical signals to different subscribers. Optical switches in Si-based waveguides make use of changes in the refractive index induced by carrier injection and offer advantages of small device size, polarization independence and capability of integrating with other Si-based optoelectronic devices. By adding Ge into Si, the bandgap of SiGe shifts towards the optical communication wavelength while the refractive index increases, which is good for wave guiding. P-N junction can also be formed easily during SiGe epitaxy. In this paper, six switching approaches at the optical communication wavelength will be introduced.

Paper Details

Date Published: 19 November 2007
PDF: 8 pages
Proc. SPIE 6783, Optical Transmission, Switching, and Subsystems V, 67831Z (19 November 2007); doi: 10.1117/12.740372
Show Author Affiliations
Baojun Li, Sun Yat-Sen Univ. (China)


Published in SPIE Proceedings Vol. 6783:
Optical Transmission, Switching, and Subsystems V
Dominique Chiaroni; Wanyi Gu; Ken-ichi Kitayama; Chang-Soo Park, Editor(s)

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