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Bi, L., Hu, J., Jiang, P., Kim, D.H., Dionne, G.F., Kimerling, L.C., et al. (2011) On-chip Optical Isolation in Monolithically Integrated Non-Reciprocal Optical Resonators. Nature Photonics, 5, 758-762.
https://doi.org/10.1038/nphoton.2011.270

has been cited by the following article:

• TITLE: Tunable Single-Photon Nonreciprocal Transmission and Directional Routing in a Microresonator-Waveguide System with Multiple Coupling Points

  AUTHORS: Jinsong Huang, Le Zhang, Hongwu Huang

  KEYWORDS: Quantum Nonreciprocity, Quantum Routing, Scattering Theory, Optical Waveguide, Microresonator

  JOURNAL NAME: Journal of Modern Physics, Vol.17 No.2, February 12, 2026

  ABSTRACT: We investigate the controllable single-photon transport via a microresonator coupled to two meandering waveguides at multiple coupling points. Using the analytical expressions of the single-photon scattering amplitudes obtained by the real-space Hamiltonian, the transport characteristics in the waveguide system are demonstrated. These results show that the perfectly nonreciprocal transmission in a single waveguide and the directional routing approaching the unity probability in two waveguides can be achieved by adjusting the resonator-waveguide coupling related to the phase parameter, arising from the phase-dependent interference effect of the multiple point couplings of the resonator. Our proposal may have wide potentials in quantum information processing.