Optical sum-frequency generation in whispering gallery mode resonators

Abstract

We demonstrate sum-frequency generation in a nonlinear whispering gallery mode resonator between a telecom wavelength and the Rb D2 line, achieved through natural phase matching. Due to the strong optical field confinement and ultra high Q of the cavity, we achieve a 1000-fold enhancement in the conversion efficiency compared to existing waveguide-based devices. The experimental data are in agreement with the nonlinear dynamics and phase matching theory in the spherical geometry employed. The experimental and theoretical results point to a new platform to manipulate the color and quantum states of light waves toward applications such as atomic memory based quantum networking and logic operations with optical signals.

References in corpus (7)

• Optical microsphere resonators: optimal coupling to high-Q whispering gallery modes
• Naturally-phasematched second harmonic generation in a whispering gallery mode resonator
• Low-threshold Optical Parametric Oscillations in a Whispering Gallery Mode Resonator
• Tunable Whispering Gallery Mode Resonators for Cavity Quantum Electrodynamics
• Highly tunable low-threshold optical parametric oscillation in radially poled whispering gallery resonators
• From quantum pulse gate to quantum pulse shaper -- enigneered frequency conversion in nonlinear optical waveguides
• Efficient upconversion of sub-THz radiation in a high-Q whispering gallery resonator

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• Near-infrared single-photon spectroscopy of a whispering gallery mode resonator using energy-resolving transition edge sensors
• Photonic temporal-mode multiplexing by quantum frequency conversion in a dichroic-finesse cavity
• Theory of ${\chi }^{(2)}$-microresonator-based frequency conversion