Perfect Optical Nonreciprocity with Mechanical Driving in a Three-Mode Optomechanical System*

Abstract

Nonreciprocal devices are indispensable for building quantum networks and ubiquitous in modern communication technology. Here, we study perfect optical nonreciprocity in a three-mode optomechanical system with mechanical driving. The scheme relies on the interference between optomechanical interaction and mechanical driving. We find perfect optical nonreciprocity can be achieved even though nonreciprocal phase difference is zero if we drive the system by a mechanical driving with a nonzero phase. We obtain the essential conditions for perfect optical nonreciprocity and analyze properties of the optical nonreciprocal transmission. These results can be used to control optical transmission in quantum information processing.

Effects of cross-Kerr coupling on transmission spectrum of double-cavity optomechanical system

“…Nonreciprocal responses were theoretically presented in the ring resonator, [31] and have recently been observed in experiment. [32][33][34][35] OMIT, FWM, and nonreciprocity, which are important components of cavity output spectrum, have been seldom and simultaneously studied in an optomechanical cavity with the CK effect, especially the effects of CK coupling on them. In this work, we study the output spectrum of the optomechanical cavity including OMIT, nonreciprocity, and FWM in a doublecavity optomechanical system, where as an optomechanical coupling interface, the MR is coupled to the two cavity fields via the radiation pressure and the CK effect.…”

Reservoir-engineered entanglement in an unresolved-sideband optomechanical system

“…Significant efforts have been devoted to generating quantum entanglement in several physical systems such as atoms [2,3], trapped ions [4,5] and defects in solid-state systems [6,7]. Particularly, cavity optomechanical systems [8], which allow convenient manipulation and precise measurement of interacting mechanical and optical degrees of freedom, are promising candidates to study quantum mechanical features from mesoscopic to macroscopic scales, including quantum ground state cooling of mechanical modes [9][10][11][12], nonlinear quantum effects [13][14][15][16], nonreciprocity [17,18], quantum entanglement and state transfer [19][20][21][22][23][24][25].…”

Fano profile in a novel double cavity optomechanical system with harmonically bound mirrors

“…Double cavity OMSs have been effectively used for ground state cooling [14,15], entanglement [16][17][18] and transduction [19] between microwave and optical photons. Hybrid optomechanical technologies comprising of toroidal shaped whispering gallery mode (WGM) microresonators have been successfully used to induce non-reciprocity between communication channels [20,21], an essential step towards quantum communication.…”