Naturally-phasematched second harmonic generation in a whispering gallery mode resonator
Optics
2010-10-27 v4 Quantum Physics
Abstract
We demonstrate for the first time natural phase matching for optical frequency doubling in a high-Q whispering gallery mode resonator made of Lithium Niobate. A conversion efficiency of 9% is achieved at 30 micro Watt in-coupled continuous wave pump power. The observed saturation pump power of 3.2 mW is almost two orders of magnitude lower than the state-of-the-art. This suggests an application of our frequency doubler as a source of non-classical light requiring only a low-power pump, which easily can be quantum noise limited. Our theoretical analysis of the three-wave mixing in a whispering gallery mode resonator provides the relative conversion efficiencies for frequency doubling in various modes.
Cite
@article{arxiv.0912.3864,
title = {Naturally-phasematched second harmonic generation in a whispering gallery mode resonator},
author = {J. U. Fürst and D. V. Strekalov and D. Elser and M. Lassen and U. L. Andersen and C. Marquardt and G. Leuchs},
journal= {arXiv preprint arXiv:0912.3864},
year = {2010}
}