Enhanced photon blockade in an optomechanical system with parametric amplification

Abstract

We propose a scheme to enhance the single- and two-photon blockade effect significantly in a standard optomechanical system (OMS) via optical parametric amplification (OPA). The scheme does not rely on the strong single-photon optomechanical coupling and can eliminate the disadvantages of suppressing multi-photon excitation incompletely. Through analyzing the single-photon blockade (1PB) mechanism and optimizing the system parameters, we obtain a perfect 1PB with a high occupancy probability of single-photon excitation, which means that a high quality and efficient single-photon source can be generated. Moreover, we find that not only the two-photon blockade (2PB) effect is significantly enhanced but also the region of 2PB occurring is widened when the OPA exists, where we also derive the optimal parameter condition to maximize the two-photon emission and the higher photon excitations are intensely suppressed at the same time.

4 pages, 4 figures

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• Kerr-Enhanced Optical Spring
• Generation of strong mechanical squeezing through the joint effect of two-tone driving and parametric pumping
• Nonclassical correlations and quadrature squeezing of photons in anisotropic quantum Rabi-Stark model
• Nonreciprocal Photon Blockade in an Asymmetric Cavity
• Generating strong mechanical squeezing via combined squeezed vacuum field and two-tone driving
• Deterministic preparation of non-classical states of light in cavity-optomechanics