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Appl. Sci. 2018, 8(7), 1139; https://doi.org/10.3390/app8071139

Ultra-Low-Loss Silicon Waveguides for Heterogeneously Integrated Silicon/III-V Photonics

Department of Electrical and Computer Engineering, University of California at Santa Barbara, Santa Barbara, CA 93106, USA
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Received: 16 June 2018 / Revised: 6 July 2018 / Accepted: 9 July 2018 / Published: 13 July 2018
(This article belongs to the Special Issue Silicon Photonics – Emerging Devices and Applications)
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Abstract

Integrated ultra-low-loss waveguides are highly desired for integrated photonics to enable applications that require long delay lines, high-Q resonators, narrow filters, etc. Here, we present an ultra-low-loss silicon waveguide on 500 nm thick Silicon-On-Insulator (SOI) platform. Meter-scale delay lines, million-Q resonators and tens of picometer bandwidth grating filters are experimentally demonstrated. We design a low-loss low-reflection taper to seamlessly integrate the ultra-low-loss waveguide with standard heterogeneous Si/III-V integrated photonics platform to allow realization of high-performance photonic devices such as ultra-low-noise lasers and optical gyroscopes. View Full-Text
Keywords: ultra-low-loss waveguide; silicon photonics; heterogeneous integration; narrow linewidth lasers; high Q resonators ultra-low-loss waveguide; silicon photonics; heterogeneous integration; narrow linewidth lasers; high Q resonators
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Tran, M.A.; Huang, D.; Komljenovic, T.; Peters, J.; Malik, A.; Bowers, J.E. Ultra-Low-Loss Silicon Waveguides for Heterogeneously Integrated Silicon/III-V Photonics. Appl. Sci. 2018, 8, 1139.

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