Chip-integrated visible-telecom photon pair sources for quantum communication.

ABSTRACT: Photon pair sources are fundamental building blocks for quantum entanglement and quantum communication. Recent studies in silicon photonics have documented promising characteristics for photon pair sources within the telecommunications band, including sub-milliwatt optical pump power, high spectral brightness, and high photon purity. However, most quantum systems suitable for local operations, such as storage and computation, support optical transitions in the visible or short near-infrared bands. In comparison to telecommunications wavelengths, the significantly higher optical attenuation in silica at such wavelengths limits the length scale over which optical-fiber-based quantum communication between such local nodes can take place. One approach to connect such systems over fiber is thro

SUBMITTER: Lu X 

PROVIDER: S-EPMC6605094 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature