Scientists can generate squeezed light via strongly driven spontaneous four-wave mixing below threshold in silicon nitride microring resonators. The generated light can be characterized with homodyne detection (to extract phase- or frequency-encoded information) and through direct measurements of photon statistics. In a new report now published on Science Advances, V.D. Vaidya, and a team of scientists in Canada and the U.S. measured the quadrature-squeezed vacuum and photon number difference generated within an integrated nanophotonic device. The results will impact applications in quantum technology.
Source:
https://phys.org/news/2020-10-nanophotonic-device.html