Universal photon blockade, which enables strong antibunching across a broad nonlinear parameter range, is demonstrated in a two-mode Jaynes-Cummings model incorporating third-order Kerr nonlinearity. Realization of this universal photon blockade is attributed to the cooperative effects of field-atom coupling and Kerr nonlinearity. More importantly, this antibunching is found to be robust against the atomic spontaneous emission, driving-field strength, and defect-induced cavity-mode coupling. The strong antibunching effect in this resonance-driven scheme is essentially different from those without Kerr nonlinearity. Moreover, this work expands the platform for achieving universal photon blockade and reveals the cooperative advantages of nonlinearities in enhancing the purity and brightness of single-photon sources, representing a strategy for high-performance single-photon sources in integrated quantum optical devices.

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• Quantum engineering
• Quantum information theory
• Quantum optics