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We propose a design of a silicon three-mode (de)multiplexing device based on a trident and two cascaded 3 × 3 multimode interferometers. Input lights at fundamental, first-order, and second-order modes of transverse electric (TE) polarization are simultaneously converted to fundamental TE mode and demultiplexed at different ports at the outputs. The design is carried out through both theoretical analysis...
In this paper, a compact triplexer is proposed by cascading three tilted multimode interference couplers for FTTH applications. AH components based on silicon rib waveguides. Firstly, a MMI coupler is designed to separate the 1310 nm wavelength band by using pseudo self-imaging technique. A tiled MMI coupler is then cascaded to separate the 1490 nm and 1550 nm wavelength bands. Numerical simulations...
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