期刊
OPTICS EXPRESS
卷 23, 期 3, 页码 3292-3298出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.23.003292
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- Danish Council for Independent Research [DFF-1337-00152, DFF-1335-00771]
We report the design and fabrication of a compact multi-core fiber fan-in/fan-out using a grating coupler array on the SOI platform. The grating couplers are fully-etched, enabling the whole circuit to be fabricated in a single lithography and etching step. Thanks to the apodized design for the grating couplers and the introduction of an aluminum reflective mirror, a highest coupling efficiency of -3.8 dB with 3 dB coupling bandwidth of 48 nm and 1.5 dB bandwidth covering the whole C band, together with crosstalk lower than -32 dB are demonstrated. (C)2015 Optical Society of America
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