Research on Integrated Nonlinear-Optic Quantum Photonic Devices Using Strong-Confinement Buried Waveguides

针对铁电晶体强约束埋地波导和非线性光学量子光子器件在量子信息处理中的应用进行了理论和实验研究。发展了键合/扩散波导、脊型波导和短周期准相位匹配结构的制备技术。提出并演示了用于单光子产生的双光子产生装置、可调谐的双光子产生装置和偏振纠缠的双光子产生装置。

Theoretical and experimental research work was performed aiming at implementation of strong-confinement buried waveguides in ferroelectric crystals and nonlinear-optic quantum photonic devices for applications to quantum information processing. Fabrication techniques for waveguides of bonding/ diffusion and ridge types and short-period quasi-phase matching structures were developed. Novel devices such as a twin-photon generation(TPG) device for single photon generation, a tunable TPG device, and polarization-entangled TPG devices were proposed and demonstrated.