Triply-resonant sum frequency conversion with gallium phosphide ring resonators
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2022-12-20 |
| Journal | Optics Express |
| Authors | Alan D. Logan, Shivangi Shree, Srivatsa Chakravarthi, Nicholas Yama, Christian Pederson |
| Institutions | University of Washington, Humboldt-UniversitƤt zu Berlin |
| Citations | 18 |
Abstract
Section titled āAbstractāWe demonstrate quasi-phase matched, triply-resonant sum frequency conversion in 10.6-Āµm-diameter integrated gallium phosphide ring resonators. A small-signal, waveguide-to-waveguide power conversion efficiency of 8 Ā± 1.1%/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 Ā± 0.6%; 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.