On-chip entangled photon source

DWPI Title: Photonic circuit for acting as transmitter and receiver in quantum communication system, has four-wave mixing (FWM) cavity that receives light having first wavelength and light having second wavelength and outputs of entangled photons
Abstract: Various technologies pertaining to an on-chip entangled photon source are described herein. A light source is used to pump two resonator cavities that are resonant at two different respective wavelengths and two different respective polarizations. The resonator cavities are coupled to a four-wave mixing cavity that receives the light at the two wavelengths and outputs polarization-entangled photons.
Use: Photonic circuit for acting as transmitter and receiver in quantum communication system.
Advantage: The power of the pump source 104 can be adjusted either to increase or decrease the probability of generating the third and the fourth wavelength photons via a four-wave mixing process.
Novelty: The photonic circuit (102) has components having a first resonating cavity (108) that receives light from an optical source and outputs light having a first wavelength. A second resonating cavity (110) that receives the light from the optical source and outputs light having a second wavelength that is different from the first wavelength. A FWM cavity (112) receives the light having the first wavelength and the light having the second wavelength and outputs at least one pair of entangled photons. The first and second resonating cavity comprise respective first and second ring resonators.
Filed: 3/9/2016
Application Number: US15065528A
Tech ID: SD 13041.1
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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