2024
DOI: 10.1364/oe.533238
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Compact and low-crosstalk multimode waveguide crossing utilizing subwavelength holey metamaterial waveguides

Bin Ni,
Chenyang Luo,
Hao Xu
et al.

Abstract: To further increase the transmission capacity of on-chip optical communication systems, hybrid division multiplexing technology has emerged as a crucial alternative solution, in which multimode waveguide crossings are highly desired. In this paper, we propose and experimentally demonstrate a compact multimode (i.e., three different modes) waveguide crossing that employs subwavelength holey metamaterial waveguides (SHMWs). The used SHMW, formed by inserting subwavelength periodic holes into a multimode interfer… Show more

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