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DOE OSTI · 1908007

Triply-resonant sum frequency conversion with gallium phosphide ring resonators

Logan, Alan D. (ORCID:0000000195668756)·Shree, Shivangi·Chakravarthi, Srivatsa (ORCID:000000028602338X)·Yama, Nicholas (ORCID:0000000261233313)·Pederson, Christian·Hestroffer, Karine·Hatami, Fariba·Fu, Kai-Mei C.
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Abstract

We demonstrate quasi-phase matched, triply-resonant sum frequency conversion in 10.6-µm-diameter integrated gallium phosphide ring resonators. A small-signal, waveguide-to-waveguide power conversion efficiency of 8 ± 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 ± 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.

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Logan, Alan D. (ORCID:0000000195668756), Shree, Shivangi, Chakravarthi, Srivatsa (ORCID:000000028602338X), Yama, Nicholas (ORCID:0000000261233313), Pederson, Christian, Hestroffer, Karine, Hatami, Fariba, Fu, Kai-Mei C.. 2023-01-05. Triply-resonant sum frequency conversion with gallium phosphide ring resonators. https://doi.org/10.1364/oe.473211

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