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  • Compact and Highly Efficien...
    Van Laere, F.; Roelkens, G.; Ayre, M.; Schrauwen, J.; Taillaert, D.; Van Thourhout, D.; Krauss, T.F.; Baets, R.

    Journal of lightwave technology, 2007-Jan., 2007, 2007-01-00, 20070101, Letnik: 25, Številka: 1
    Journal Article, Conference Proceeding

    We present high-efficiency grating couplers for coupling between a single-mode fiber and nanophotonic waveguides, fabricated both in silicon-on-insulator (SOI) and InP membranes using BenzoCycloButene wafer bonding. The coupling efficiency is substantially increased by adding a gold bottom mirror to the structures. The measured coupling efficiency to fiber is 69% for SOI grating couplers and 56% for bonded InP membrane grating couplers