Title: Quantum Photonics in Monolithic Semiconductors for Practical Applications
Summary:
– Researchers at NIST are developing a new quantum photonics technology using monolithic semiconductors to create practical quantum optical devices
– The technology enables the integration of various quantum optical components on a single chip, including laser pump sources, power splitters, gates, and cavities
– This approach allows transferring current quantum optical setups from lab benches to practical applications and even commercial markets
– The technology can generate entangled photon pairs and hyper-entangled photons on a single chip without external components
– The research is led by Amr Helmy, a professor at the University of Toronto with expertise in photonic device physics and nonlinear optics in semiconductors
Key Technical Points:
– Utilizes second-order nonlinearities (χ(2)) in monolithic semiconductors
– Uses dispersion engineering in Bragg reflection waveguides to harness parametric processes
– Enables novel coherent light sources using frequency conversion in a self-pumped chip format
– Allows deterministic splitting of entangled states of light
– Exhibits unique quantum state engineering characteristics in integrated architectures
Keywords: entangled photons, nonlinear optics, monolithic photonics, quantum state engineering, metrology applications
