Yuhan Du, Xingchen Ji, Weiqiang Xie, Yu He, Yong Zhang, Meng Tian, Yikai Su
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Abstract
Fiber-Chip Edge Couplers
In article number 2400196, Xingchen Ji, Yikai Su, and co-workers introduce a high-efficiency edge coupler based on an alumina-on-insulator platform, which consists of a symmetric double-tip taper and a multimode interference (MMI)-based optical combiner. The edge coupler is designed to realize efficient mode matching between the single-mode fiber and chip facet via the symmetric double-tip taper at the initial stage, and then combine the two channels in the taper into a highly confined strip waveguide through the MMI-based combiner.
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