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

Minh Tran; Duanni Huang; Tin Komljenovic; Jonathan Peters; Aditya Malik; John Bowers

doi:10.20944/preprints201806.0274.v2

Preprint Article Version 2 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 16 June 2018 / Approved: 18 June 2018 / Online: 18 June 2018 (15:39:38 CEST)
Version 2 : Received: 13 July 2018 / Approved: 16 July 2018 / Online: 16 July 2018 (15:14:32 CEST)

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 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.

ultra-low-loss waveguide; silicon photonics; heterogeneous integration; narrow linewidth lasers; high Q resonators.

Physical Sciences, Optics and Photonics

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

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