AI Article Synopsis
- Frequency entangled photon sources are crucial for various optical quantum technologies like quantum key distribution and quantum computation.
- Researchers developed a silicon nitride ring cavity to generate frequency correlated photon pairs at a rate of 150 GHz, demonstrating compatibility with existing tech.
- The study includes characterizing the phase matching condition, evaluating the joint spectrum intensity of 42 photon frequency pairs, and analyzing how these results relate to the phase matching condition.
Article Abstract
Frequency entangled photon sources are in high demand in a variety of optical quantum technologies, including quantum key distribution, cluster state quantum computation and quantum metrology. In the recent decade, chip-scale entangled photon sources have been developed using silicon platforms, offering robustness, large scalability and CMOS technology compatibility. Here, we report the generation of frequency correlated photon pairs using a 150-GHz silicon nitride ring cavity. First, the device is characterized for studying the phase matching condition during spontaneous four-wave mixing. Next, we evaluate the joint spectrum intensity of the generated photons and confirm the photon pair generation in a total of 42 correlated frequency mode pairs, corresponding to a bandwidth of 51.25 nm. Finally, the experimental results are analyzed and the joint spectral intensity is quantified in terms of the phase matching condition.
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| http://dx.doi.org/10.1364/OE.416165 | DOI Listing |
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