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arXiv · 2208.06764

Triply-Resonant Sum Frequency Conversion with Gallium Phosphide Ring Resonators

Alan D. Logan·Shivangi Shree·Srivatsa Chakravarthi·Nicholas Yama·Christian Pederson·Karine Hestroffer·Fariba Hatami·Kai-Mei C. Fu
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Abstract

We demonstrate quasi-phase matched, triply-resonant sum frequency conversion in 10.6-um-diameter integrated gallium phosphide ring resonators. A small-signal, waveguide-to-waveguide power conversion efficiency of 8%/mW is measured for conversion from telecom (1536 nm) and near infrared (1117 nm) to visible (647 nm) wavelengths with an absolute power conversion efficiency of 6.3% measured at saturation pump power. For the complementary difference frequency generation process, a single photon conversion efficiency of 7.2%/mW from visible to telecom is projected for resonators with optimized coupling. Efficient conversion from visible to telecom will facilitate long-distance transmission of spin-entangled photons from solid-state emitters such as the diamond NV center, allowing long-distance entanglement for quantum networks.

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Alan D. Logan, Shivangi Shree, Srivatsa Chakravarthi, Nicholas Yama, Christian Pederson, Karine Hestroffer, Fariba Hatami, Kai-Mei C. Fu. 2022-08-14. Triply-Resonant Sum Frequency Conversion with Gallium Phosphide Ring Resonators. https://doi.org/10.1364/oe.473211

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