title: Optomechanically induced non-reciprocity in microring resonators.
abstract: We describe a new approach for on-chip optical non-reciprocity which makes use of strong optomechanical interaction in microring resonators. By optically pumping the ring resonator in one direction, the optomechanical coupling is only enhanced in that direction, and consequently, the system exhibits a non-reciprocal response. For different configurations, this system can function either as an optical isolator or a coherent non-reciprocal phase shifter. We show that the operation of such a device on the level of single-photon could be achieved with existing technology.
authors.affiliation: Joint Quantum Institute, NIST/University of Maryland, College Park, MD 20742, USA. hafezi@umd.edu
authors.forename: Mohammad
authors.initials: M
authors.lastname: Hafezi
authors.forename: Peter
authors.initials: P
authors.lastname: Rabl
mesh_terms: D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008027:Light; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D008904:Miniaturization; D008962:Models, Theoretical; D055096:Optical Devices; D012542:Scattering, Radiation; D014159:Transducers