论文标题
三磷脂环谐振器的三重谐振总和频率转换
Triply-Resonant Sum Frequency Conversion with Gallium Phosphide Ring Resonators
论文作者
论文摘要
我们展示了与10.6-UM直径磷化物环谐振器中的准阶段相匹配的，三重谐振的总和频率转换。测量了从电信（1536 nm）和近红外（1117 nm）到可见的（647 nm）波长的小信号，波导到波导的功率转换效率为8％/mW，其绝对功率转换效率为6.3％。对于互补差的频率生成过程，针对具有优化耦合的谐振器预计，预计从可见到电信的单个光子转换效率为7.2％/mW。从可见电信到电信的有效转换将有助于从固态发射器（例如Diamond NV中心）的自旋式光子的长距离传播，从而使量子网络的长距离纠缠。
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.
