We proposed a two-coupled microsphere resonator structure as the element of angular velocity sensing under the Sagnac effect.We analyzed the theoretical model of the two coupled microspheres,and derived the coupled-re...We proposed a two-coupled microsphere resonator structure as the element of angular velocity sensing under the Sagnac effect.We analyzed the theoretical model of the two coupled microspheres,and derived the coupled-resonatorinduced transparency（CRIT） transfer function,the effective phase shift,and the group delay.Experiments were also carried out to demonstrate the CRIT phenomenon in the two-coupled microsphere resonator structure.We calculated that the group index of the two-coupled sphere reaches n_g = 180.46,while the input light at a wavelength of 1550 nm.展开更多
Orbital angular momentum(OAM)waveguides are critical for multi-channel photonic-on-chip applications.However,current large-mode-area waveguides pose a challenge for OAM device miniaturization.Here,a novel hybrid plasm...Orbital angular momentum(OAM)waveguides are critical for multi-channel photonic-on-chip applications.However,current large-mode-area waveguides pose a challenge for OAM device miniaturization.Here,a novel hybrid plasmonic waveguide is theoretically proposed to decrease the OAM mode area by two orders of magnitude.Benefiting from the Ag-As_(2)S_(3)-SiO_(2)-As_(2)S_(3)-Ag five-layer cylindrical structure,the guided OAM mode realizes a larger figure of merit of 88.Based on this waveguide,an OAM coupler with a record-breaking small footprint(0.68μm×5.7μm)is designed.The proposed waveguide enables subwavelength OAM light transmission,which provides a key building block for high-density OAM photonics circuits.展开更多
基金Project supported by the National Natural Science Foundation of China(Grant Nos.51225504,61171056,and 91123036)the Program for the Top Young Academic Leaders of Higher Learning Institutions of Shanxi Province,China
文摘We proposed a two-coupled microsphere resonator structure as the element of angular velocity sensing under the Sagnac effect.We analyzed the theoretical model of the two coupled microspheres,and derived the coupled-resonatorinduced transparency（CRIT） transfer function,the effective phase shift,and the group delay.Experiments were also carried out to demonstrate the CRIT phenomenon in the two-coupled microsphere resonator structure.We calculated that the group index of the two-coupled sphere reaches n_g = 180.46,while the input light at a wavelength of 1550 nm.
基金supported by the National Natural Science Foundation of China(No.62305057)the Guangdong Basic and Applied Basic Research Foundation(Nos.2021B1515020095,2021A1515110919,and 2019A1515110243)the Research Fund of Guangdong-Hong Kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology(No.2020B1212030010)。
文摘Orbital angular momentum(OAM)waveguides are critical for multi-channel photonic-on-chip applications.However,current large-mode-area waveguides pose a challenge for OAM device miniaturization.Here,a novel hybrid plasmonic waveguide is theoretically proposed to decrease the OAM mode area by two orders of magnitude.Benefiting from the Ag-As_(2)S_(3)-SiO_(2)-As_(2)S_(3)-Ag five-layer cylindrical structure,the guided OAM mode realizes a larger figure of merit of 88.Based on this waveguide,an OAM coupler with a record-breaking small footprint(0.68μm×5.7μm)is designed.The proposed waveguide enables subwavelength OAM light transmission,which provides a key building block for high-density OAM photonics circuits.
