Photonic integrated circuits for generating high-brightness squeezed light

DWPI Title: System for generating high-brightness squeezed light, has photonic summing device that receives first and second squeezed lights and outputs third squeezed light having greater power than first or second squeezed light
Abstract: A high-brightness squeezed light source includes a plurality of light squeezing elements and a photonic summing device. The light squeezing elements each output respective squeezed light responsive to receipt of unsqueezed light. The photonic summing device receives the squeezed light output by each of the light squeezing elements and coherently adds the squeezed light to generate a high-brightness squeezed light output. The high-brightness squeezed light output has a greater brightness than the outputs of the light squeezing elements, and a same degree of squeezing as one or more of the outputs of the light squeezing elements.
Use: System for generating high-brightness squeezed light for use in various measurement and optical devices. Uses include but are not limited to quantum computing, quantum metrology, and squeezed light lidar.
Advantage: The system allows brightness of squeezed light to be increased while preserving its degree of squeezing. The photonic summing device can be formed from chip-compatible devices such as waveguides and Mach-Zehnder modulators (MZMs). The technologies are suitable for chip-scale integrated devices that can be easily and cost-effectively manufactured, and that are durable and reliable.
Novelty: The system has a first optomechanical resonator (300) that is configured to receive first light and to output first squeezed light (200). A second optomechanical resonator that is configured to receive second light and to output second squeezed light. A photonic summing device is configured to receive the first squeezed light and the second squeezed light and to output third squeezed light, the third squeezed light having a greater power than the first squeezed light or the second squeezed light. The first squeezed light having a first degree of squeezing
Filed: 10/27/2020
Application Number: US17081233A
Tech ID: SD 15386.0
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
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