1. Quantum Light Generation based on GaN Microring towards Fully On-chip Source
- Author
-
Zeng, Hong, He, Zhao-Qin, Fan, Yun-Ru, Luo, Yue, Lyu, Chen, Wu, Jin-Peng, Li, Yun-Bo, Liu, Sheng, Wang, Dong, Zhang, De-Chao, Zeng, Juan-Juan, Deng, Guang-Wei, Wang, You, Song, Hai-Zhi, Wang, Zhen, You, Li-Xing, Guo, Kai, Sun, Chang-Zheng, Luo, Yi, Guo, Guang-Can, and Zhou, Qiang
- Subjects
Quantum Physics - Abstract
Integrated quantum light source is increasingly desirable in large-scale quantum information processing.~Despite recent remarkable advances, new material platform is constantly being explored for the fully on-chip integration of quantum light generation, active and passive manipulation, and detection. Here, for the first time, we demonstrate a gallium nitride (GaN) microring based quantum light generation in the telecom C-band, which has potential towards the monolithic integration of quantum light source.~In our demonstration, the GaN microring has a free spectral range of 330 GHz and a near-zero anomalous dispersion region of over 100 nm. The generation of energy-time entangled photon pair is demonstrated with a typical raw two-photon interference visibility of 95.5$\pm$6.5%, which is further configured to generate heralded single photon with a typical heralded second-order auto-correlation $g^{(2)}_{H}(0)$ of 0.045$\pm$0.001. Our results pave the way for developing chip-scale quantum photonic circuit.
- Published
- 2024