Description: The overall goal of this NASA effort is to develop and deliver efficient, single-pass quantum optical waveguide sources generating high purity hyper-entangled photon pairs for use in high-rate long-distance links. The new devices will produce hyper-entangled photon pairs with high efficiency, pure spectral properties, and low attenuation, providing the key technology required for deployment of ground-to-space links and future construction of a global quantum network. The waveguide-based technology is compact, robust, and power efficient for deployment on space-based platforms such as the International Space Station.

Benefits: high rate, spaced-based secure communications e.g. quantum key distribution quantum metrology for precision space based navigation space-based entanglement tests of quantum and gravitational theories

characterization, optimization, and calibration of photon starved detectors key element of proposed linear optical quantum computation optical Schrodinger cat states teleportation-based quantum repeaters for QKD over unlimited distance.