Frequency correlated photon generation at telecom band using silicon nitride ring cavities

• URL: http://arxiv.org/abs/2102.03005v1
• Date: Fri, 5 Feb 2021 05:27:31 GMT
• Title: Frequency correlated photon generation at telecom band using silicon nitride ring cavities
• Authors: Zhenghao Yin, Kenta Sugiura, Hideaki Takashima, Ryo Okamoto, Feng Qiu, Shiyoshi Yokoyama, Shigeki Takeuchi
• Abstract summary: Chip-scale entangled photon sources have been developed using silicon platforms. We report the generation of frequency correlated photon pairs using a 150-GHz silicon nitride ring cavity.
• Score: 0.4802758600019421
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• 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 of42 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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