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Two-mode converters at 1.3μm,aiming at applications in mode-division multiplexing in Ethernet systems,are proposed and experimentally demonstrated.Based on multimode interference couplers,the two-mode converters with 50%and 66%mode conversion efficiencies are designed and fabricated on fnP substrates.Mode conversion from the fundamental mode(TEo) to the first order mode(TE_1) is successfully demonstrated within the wavelength range of 1280-1320 nm.The 1.3-μm mode converters should be important devices in mode-division multiplexing systems in Ethernet systems.
Two-mode converters at 1.3 μm, aiming at applications in mode-division multiplexing in Ethernet systems, are proposed and experimentally demonstrated. Based on multimode interference couplers, the two-mode converters with 50% and 66% mode conversion efficiencies are designed and fabricated on fnP substrates.Mode conversion from the fundamental mode (TEo) to the first order mode (TE_1) is successfully demonstrated within the wavelength range of 1280-1320 nm. The 1.3-μm mode converters should be important devices in mode-division multiplexing systems in Ethernet systems.