Nonreciprocal optical devices are key components in photonic integrated circuits for light reflection blocking and routing.Most reported silicon integrated nonreciprocal optical devices to date were unit devices.To al...Nonreciprocal optical devices are key components in photonic integrated circuits for light reflection blocking and routing.Most reported silicon integrated nonreciprocal optical devices to date were unit devices.To allow complex signal routing between multiple ports in photonic networks,multi-port magneto-optical(MO)nonreciprocal photonic devices are desired.In this study,we report experimental demonstration of a silicon integrated5×5 nonreciprocal optical router based on a magneto-optical phased array.By introducing different nonreciprocal phase shifts to planar photonic waveguides,the device focuses light to different ports for both forward and backward propagation directions.The device shows designable nonreciprocal optical transmission between5×5 ports,achieving 16 dB isolation ratio and-18 dB crosstalk.展开更多
基金National Natural Science Foundation of China(52450018,U22A20148,52021001,52473292)Sichuan Provincial Science and Technology Department(2025ZNSFSC0040,2024NSFSC0484)+1 种基金China Postdoctoral Science Foundation(2024M762284)Open Foundation of Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of Education(ZYGXKPKFJJ20240011-2)。
文摘Nonreciprocal optical devices are key components in photonic integrated circuits for light reflection blocking and routing.Most reported silicon integrated nonreciprocal optical devices to date were unit devices.To allow complex signal routing between multiple ports in photonic networks,multi-port magneto-optical(MO)nonreciprocal photonic devices are desired.In this study,we report experimental demonstration of a silicon integrated5×5 nonreciprocal optical router based on a magneto-optical phased array.By introducing different nonreciprocal phase shifts to planar photonic waveguides,the device focuses light to different ports for both forward and backward propagation directions.The device shows designable nonreciprocal optical transmission between5×5 ports,achieving 16 dB isolation ratio and-18 dB crosstalk.
