期刊
OPTICS EXPRESS
卷 28, 期 22, 页码 33254-33262出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.408700
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资金
- National Key Research and Development Program of China [2018YFB1801804]
- National Natural Science Foundation of China [61675128, 61875124, 61935011]
In this work, a silicon-integrated edge coupler supporting dual-mode fiber-to-chip coupling was designed and fabricated on 220-nm-thick SOI wafer with standard CMOS-compatible fabrication process. The proposed low-complexity structure consists of a multimode interference and triple-tip inverse taper. Both LP01 and LP11 modes in the few mode fiber (FMF) can be stimulated simultaneously by the edge coupler from TE0 and TE1 modes in silicon waveguide. Such a design is compatible with broadband wavelength division multiplexing and can be scaled up to 4-polarization-mode coupling as well. Using the proposed edge coupler, 2x100-Gbps/lambda PAM4 multimode interface through dual-mode fiber was demonstrated successfully. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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