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Abstract: Metal hybrid waveguide couplers, which are crucial passive structures in terahertz (THz) in-phase-quadrature (IQ) mixers, have raised significant attention in the development of high-speed ...

Abstract: Subwavelength grating (SWG) couplers have attracted great attention in silicon photonics due to the flexible capacity of index tailoring for light coupling. With the intrinsic high ...