Co-optimizing grating couplers for hybrid integration of InP and SOI photonic platforms

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ID: 86774
2018
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Abstract
Grating couplers are widely used optical interfaces in integrated photonics, especially on the Silicon-On-Insulator (SOI) platform. Their design has been optimized for coupling light between a Photonic Integrated Circuit (PIC) and a single-mode fiber, a μlens for free space transport, or even a second PIC in the same SOI platform. In this work, we co-design matching pairs of grating-couplers on distinct SOI and InP photonic platforms for optimized PIC-to-PIC coupling. By matching the scattering strengths of the two grating-couplers, we show that a PIC-to-PIC insertion loss of 3dB can be achieved. We also investigate how the design parameters impact the coupling efficiency and the bandwidth, ending up with a tolerance analysis. The proposed coupling approach between two different waveguide materials has prospective applications for the hybrid-integration of SOI and InP photonic platforms for communication technologies.
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passoni2018cooptimizingaip Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Passoni, M.;Floris, F.;Hwang, H. Y.;Zagaglia, L.;Carroll, L.;Andreani, L. C.;O’Brien, P.;
Journal aip advances
Year 2018
DOI
DOI not found
URL
http://dx.doi.org/10.1063/1.5046164
Keywords
Medicine Chemical technology Engineering (General). Civil engineering (General) Electrical engineering. Electronics. Nuclear engineering Science physics telecommunication mathematics nuclear and particle physics. atomic energy. radioactivity

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