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Proceedings Paper

Ultra-compact integrated silicon photonics balanced coherent photodetector
Author(s): Jason T. Meyer; Mahmoud Fallahi
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Paper Abstract

In this paper, the performance simulations of a novel ultra-compact balanced coherent photodetector for operation at a wavelength of 1.5 μm are presented and design proposals for future fabrication processes are provided. It consists of a compact 2x2 MMI that is evanescently coupled into a germanium MSM photodetection layer. The simulations demonstrate dark current less than 10 nA, capacitance less than 20 fF, and optical bandwidth in the 10-30 GHz range. We propose utilizing the simplicity of direct wafer bonding to bond the detection layer to the output waveguides to avoid complicated epitaxial growth issues. This ultra-compact device shows promise as a high-speed, low-cost integrated silicon photonics solution for the telecommunications infrastructure.

Paper Details

Date Published: 13 February 2016
PDF: 10 pages
Proc. SPIE 9774, Next-Generation Optical Communication: Components, Sub-Systems, and Systems V, 97740H (13 February 2016); doi: 10.1117/12.2213359
Show Author Affiliations
Jason T. Meyer, College of Optical Sciences, The Univ. of Arizona (United States)
Mahmoud Fallahi, College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 9774:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems V
Guifang Li; Xiang Zhou, Editor(s)

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