Optically switchable Y-branching microphotonic splitter

Baojun Li; Yao Zhang; Lihua Teng; Yuzhou Zhao

doi:10.1117/12.622088

30 September 2005 Optically switchable Y-branching microphotonic splitter

Baojun Li, Yao Zhang, Lihua Teng, Yuzhou Zhao

Proceedings Volume 5956, Integrated Optics: Theory and Applications; 59560G (2005) https://doi.org/10.1117/12.622088
Event: Congress on Optics and Optoelectronics, 2005, Warsaw, Poland

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.

Citation Download Citation

Baojun Li, Yao Zhang, Lihua Teng, and Yuzhou Zhao "Optically switchable Y-branching microphotonic splitter", Proc. SPIE 5956, Integrated Optics: Theory and Applications, 59560G (30 September 2005); https://doi.org/10.1117/12.622088

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