Low-loss spiral waveguides with ultra-small footprint on a micron scale SOI platform

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    24 Citations (Scopus)


    We have recently characterized spirals waveguides based on 4 Îm thick strip waveguides with suitably designed lowloss micron scale bends. Different bends and different lengths have been tested to extrapolate propagation losses and bending losses. In particular lowest bending losses have been found to be smaller than 0.01 dB per turn, while propagation losses are about 0.15 dB/cm. Very small footprint is achieved thanks to a novel bend concept combined to waveguide pitches of a few microns. The unique properties of our waveguides make our platform the ideal one for low loss long spiral waveguides with very small footprint
    Original languageEnglish
    Title of host publicationSilicon Photonics IX
    EditorsJoel Kubby, Graham T. Reed
    PublisherInternational Society for Optics and Photonics SPIE
    ISBN (Print)978-0-8194-9903-5
    Publication statusPublished - 2014
    MoE publication typeA4 Article in a conference publication
    EventSilicon Photonics IX - San Francisco, United States
    Duration: 3 Feb 20145 Feb 2014

    Publication series

    SeriesProceedings of SPIE


    ConferenceSilicon Photonics IX
    Country/TerritoryUnited States
    CitySan Francisco


    • waveguides
    • high density integration
    • integrated optics
    • silicon photonics


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