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Conference Papers Year : 2019

Sub-decibel off-chip fiber couplers based on L-shaped waveguides and subwavelength grating metamaterials

X. Le Roux

Abstract

Uniform grating couplers based on versatile L-shaped waveguides are experimentally demonstrated, with coupling loss of-2.7 dB and back-reflections of-20 dB. Apodized couplers with subwavelength-grating metamaterials predict improved fiber-chip coupling down to-0.46 dB within device layouts compatible with lithographic technologies available in nanophotonic foundries.
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Dates and versions

hal-02539569 , version 1 (10-04-2020)

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D. Benedikovic, C. Alonso-Ramos, S. Guerber, D Pérez-Galacho, X. Le Roux, et al.. Sub-decibel off-chip fiber couplers based on L-shaped waveguides and subwavelength grating metamaterials. 16th International Conference on Group IV Photonics, Aug 2019, Singapour, Singapore. ⟨10.1109/GROUP4.2019.8926025⟩. ⟨hal-02539569⟩
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