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Proceedings Paper

Optically switchable Y-branching microphotonic splitter
Author(s): Baojun Li; Yao Zhang; Lihua Teng; Yuzhou Zhao
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Paper Abstract

An optically switchable microphotonic splitter with a low insertion loss and a low driving voltage is developed using carrier injection in a silicon-germanium material for optical communication systems and networks at a wavelength of 1.55 um. The device structure has been improved based on a symmetrical traditional Y-shaped configuration by using two widened carrier injection regions. The device has a threshold voltage of 1.0 V and a corresponding threshold current of 85 mA on one of the two output waveguide arms. The calculated driving current density is 5.7 kA/cm2 and the calculated power consumption is 85 mW at the 85 mA of threshold current. The measured insertion loss and the crosstalk are 5.2 dB and -9.6 dB, respectively, at driving voltage over 2 V.

Paper Details

Date Published: 30 September 2005
PDF: 6 pages
Proc. SPIE 5956, Integrated Optics: Theory and Applications, 59560G (30 September 2005); doi: 10.1117/12.622088
Show Author Affiliations
Baojun Li, Sun Yat-Sen Univ. (China)
Yao Zhang, Sun Yat-Sen Univ. (China)
Lihua Teng, Sun Yat-Sen Univ. (China)
Yuzhou Zhao, Sun Yat-Sen Univ. (China)

Published in SPIE Proceedings Vol. 5956:
Integrated Optics: Theory and Applications
Tadeusz Pustelny; Paul V. Lambeck; Christophe Gorecki, Editor(s)

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