Quantum Squeezing Induced Optical Nonreciprocity

Abstract

We propose an all-optical approach to achieve optical nonreciprocity on a chip by quantum squeezing one of two coupled resonator modes. By parametric pumping a nonlinear resonator unidirectionally with a classical coherent field, we squeeze the resonator mode in a selective direction due to the phase-matching condition, and induce a chiral photon interaction between two resonators. Based on this chiral interresonator coupling, we achieve an all-optical diode and a three-port quasi-circulator. By applying a second squeezed-vacuum field to the squeezed resonator mode, our nonreciprocal device also works for single-photon pulses. We obtain an isolation ratio of >40 dB for the diode and fidelity of $>98\%$ for the quasi-circulator, and insertion loss of <1 dB for both. We also show that nonreciprocal transmission of strong light can be switched on and off by a relative weak pump light. This achievement implies a nonreciprocal optical transistor. Our protocol opens up a new route to achieve integrable all-optical nonreciprocal devices permitting chip-compatible optical isolation and nonreciporcal quantum information processing.

References in corpus (12)

• Chiral Quantum Optics
• Quantum spin Hall effect of light
• Monolithic Ultrahigh-Q Lithium Niobate Microring Resonator
• Squeezed Optomechanics with Phase-matched Amplification and Dissipation
• Quantum optical circulator controlled by a single chirally coupled atom
• Ultra-low loss integrated visible photonics using thin-film lithium niobate
• Second harmonic generation in nano-structured thin-film lithium niobate waveguides
• Optical Tamm states in one-dimensional magnetophotonic structures
• Topological non-Hermitian origin of surface Maxwell waves
• Continuous-wave 6-dB-squeezed light with 2.5-THz-bandwidth from single-mode PPLN waveguide
• Efficient frequency conversion in a degenerate ${\chi }^{(2)}$ microresonator
• Non-reciprocity and quantum correlations of light transport in hot atoms via reservoir engineering

Cited by in corpus (8)

• Nonreciprocal single-photon band structure
• Amplification of quantum signals by the non-Hermitian skin effect
• All-optical generation of deterministic squeezed Schrödinger-cat states
• A passive bias-free ultrabroadband optical isolator based on unidirectional self-induced transparency
• Optomechanical compensatory cooling mechanism with exceptional points
• Relative Phase Distribution and the Precision of Optical Phase Sensing in Quantum Metrology
• Squeezed light generated with hyperradiance without nonlinearity
• Beating the 3 dB Limit for Intracavity Squeezing and Its Application to Nondemolition Qubit Readout