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

ZHENGHAO YIN, KENTA SUGIURA, HIDEAKI TAKASHIMA, RYO OKAMOTO, FENG QIU, SHIYOSHI YOKOYAMA, SHIGEKI TAKEUCHI

Research output: Contribution to journalArticlepeer-review

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 confirmthe 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.

Original languageEnglish
Pages (from-to)4821-4829
Number of pages9
JournalOptics Express
Volume29
Issue number4
DOIs
Publication statusPublished - Feb 15 2021

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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