The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 07, 2015
Filed:
Jan. 14, 2011
Pascale Senellart, Orsay, FR;
Adrien Dousse, North Point, HK;
Pascale Senellart, Orsay, FR;
Adrien Dousse, North Point, HK;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
Abstract
An entangled photon pair source including: a quantum emitter having a ground state, two degenerate states that have one elementary excitation and different spins, and a state having two elementary excitations; a first optical cavity, wherein the quantum emitter is inserted; and a second optical cavity coupled with the first cavity. The geometry of the first and second cavities, and force of coupling thereof, are selected such that the whole formed by both coupled cavities has a first pair of polarization-degenerate modes, that are resonant with transitions between the state having two elementary excitations and the two degenerate states having one elementary excitation from the quantum emitter, and a second pair of polarization-degenerate modes that are resonant with transitions between the degenerate states, having one elementary excitation, and the ground state.