Ultrahigh-efficiency apodized grating coupler using fully etched photonic crystals

Yunhong Ding, Haiyan Ou, Christophe Peucheret

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    We present an efficient method to design apodized grating couplers with Gaussian output profiles for efficient coupling between standard single mode fibers and silicon chips. An apodized grating coupler using fully etched photonic crystal holes on the silicon-on-insulator platform is designed, and fabricated in a single step of lithography and etching. An ultralow coupling loss of x2212;1.74x2009;x2009;dB (67% coupling efficiency) with a 3xA0;dB bandwidth of 60xA0;nm is experimentally measured.
    Original languageEnglish
    JournalOptics Letters
    Issue number15
    Pages (from-to)2732-2734
    Publication statusPublished - 2013

    Bibliographical note

    This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/ol/abstract.cfm?uri=ol-38-15-2732. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.


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