2019/06/30 by T. Tian, Tian Tian, Zhihai Wang +2
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Angular velocity #Computer science #Gyroscope #Materials science #Mechanical and Optical Resonators #Optics #Photonic and Optical Devices #Physics #Quantum mechanics #Resonator #Rotation (mathematics) #Sagnac effect #Spinning #Whispering-gallery wave #quant-ph
paper · pdf · doi:10.1103/physreva.100.043810
published as Phys. Rev. A 100, 043810 (2019) · 7 pages, 5 figures. Accepted by Phys. Rev. A
arxiv created 2019/09/19 · openalex publication_date 2019/10/10 · arxiv updated 2019/10/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We theoretically propose a scheme to realize rotation sensing based on two coupled whispering-gallery-mode resonators with loss and gain. We consider that the active resonator with gain is rotated while the passive one with loss is stationary. The rotation will induce Sagnac effect and we show that the eigenfrequencies of the supermodes are sensitive to the Sagnac-Fizeau shift. Therefore, we can measure the average photon number in the steady state or the fluctuation spectrum of the output fields to detect the angular velocity of the rotation. We hope that our investigation will be useful in the design of a quantum gyroscope based on spinning resonators.