Strong Nonlinear Coupling due to Induced Photon Interaction on a Si${}_3$N${}_4$ Chip

Abstract

Second-order optical processes lead to a host of applications in classical and quantum optics. With the enhancement of parametric interactions that arise due to light confinement, on-chip implementations promise very-large-scale photonic integration. But as yet there is no route to a device that acts at the single photon level. Here we exploit the ${\chi }^{(3)}$ nonlinear response of a Si${}_3$N${}_4$ microring resonator to induce a large effective ${\chi }^{(2)}$. Effective second-order upconversion (ESUP) of a seed to an idler can be achieved with 74,000 %/W efficiency, indicating that single photon nonlinearity is within reach of current technology. Moreover, we show a nonlinear coupling rate of seed and idler larger than the energy dissipation rate in the resonator, indicating a strong coupling regime. Consequently we observe a Rabi-like splitting, for which we provide a detailed theoretical description. This yields new insight into the dynamics of ultrastrong effective nonlinear interactions in microresonators, and access to novel phenomena and applications in classical and quantum nonlinear optics.

9 pages, 6 figures, 1 table. Comments and remarks are highly welcome - please contact us!

References in corpus (7)

• Single photons from coupled quantum modes
• Non-reciprocal nonlinear optic induced transparency and frequency conversion on a chip
• Ultra-low power nonlinear optics in a high Q CMOS compatible integrated micro-ring resonator
• Nonlinear interaction between two heralded single photons
• Spontaneous four-wave mixing in lossy microring resonators
• Strongly driven nonlinear quantum optics in microring resonators
• Quantum frequency conversion and strong coupling of photonic modes using four-wave mixing in integrated microresonators

Cited by in corpus (2)

• Electronically Programmable Photonic Molecule
• Whispering gallery mode microresonator for nonlinear optics