Optical waveguides – Having nonlinear property
Reexamination Certificate
2008-05-13
2008-05-13
Font, Frank G. (Department: 2883)
Optical waveguides
Having nonlinear property
C385S129000, C385S147000, C250S216000, C250S225000, C372S043010
Reexamination Certificate
active
07373059
ABSTRACT:
Various embodiments of the present invention are directed to compact systems for generating polarization-entangled photons. In one embodiment of the present invention, a polarization entangled-photon state source comprises a single transmission layer configured for transmitting electromagnetic radiation. The transmission layer includes a beamsplitter and a down-conversion device, both of which are configured to convert a pump beam into first and second signal beams and first and second idler beams. The transmission layer also includes a mode converter configured to invert electric and magnetic field components of both the first signal beam and the first idler beam, and a combiner configured to receive the first and second signal beams and the first and second idler beams and output the first and second signal beams and the first and second idler beams in an entangled polarization states.
REFERENCES:
patent: 5596667 (1997-01-01), Watanabe
patent: 2006/0163465 (2006-07-01), Kuzmich et al.
Beausoleil, Jr. Raymond G.
Florentino Marco
Santori Charles
Spillane Sean
Dupuis Derek L.
Font Frank G.
Hewlett--Packard Development Company, L.P.
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