2017/09/19 by Zhen Shen, Yan-Lei Zhang, Yan‐Lei Zhang +11 · 218 citations
Engineering · Physics and Astronomy · #Amplifier #CMOS #Circulator #Computer science #Electronic circuit #Electronic engineering #Engineering #Gyrator #Magneto-Optical Properties and Applications #Mechanical and Optical Resonators #Microwave #Optical circulator #Optical fiber #Optics #Optoelectronics #Photonic and Optical Devices #Photonics #Physics #Quantum #Quantum mechanics #Reciprocal #Reciprocity (cultural anthropology) #Reconfigurability #Resonator #Telecommunications #physics.optics
paper · pdf · doi:10.1038/s41467-018-04187-8
published in Nature Communications 9(1), 1797 (Nature Portfolio) · 13 pages, 4 Figures
arxiv created 2017/09/19 · openalex publication_date 2018/04/30 · arxiv updated 2018/07/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Non-reciprocal devices, which allow non-reciprocal signal routing, serve as fundamental elements in photonic and microwave circuits and are crucial in both classical and quantum information processing. The radiation-pressure-induced coupling between light and mechanical motion in travelling-wave resonators has been exploited to break the Lorentz reciprocity, enabling non-reciprocal devices without magnetic materials. Here, we experimentally demonstrate a reconfigurable non-reciprocal device with alternative functions as either a circulator or a directional amplifier via optomechanically induced coherent photon-phonon conversion or gain. The demonstrated device exhibits considerable flexibility and offers exciting opportunities for combining reconfigurability, non-reciprocity and active properties in single photonic devices, which can also be generalized to microwave and acoustic circuits.