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:
May. 02, 2006
Filed:
Apr. 29, 2004
Raymond G. Beausoleil, Jr., Redmond, WA (US);
William J. Munro, Bristol, GB;
Timothy P. Spiller, Bristol, GB;
Kae Nemoto, Tokyo, JP;
Sean D. Barrett, Bristol, GB;
Raymond G. Beausoleil, Jr., Redmond, WA (US);
William J. Munro, Bristol, GB;
Timothy P. Spiller, Bristol, GB;
Kae Nemoto, Tokyo, JP;
Sean D. Barrett, Bristol, GB;
Hewlett-Packard Development Company, LP., Houston, TX (US);
Abstract
A device capable of efficiently detecting a single-photon signal preserves a photon characteristic such as polarization or angular momentum. The device can include a beam splitter that splits an input photon state into modes that are distinguished by states of a characteristic of signal photons in the input photon state, a non-destructive measurement system capable of measuring a total number of photons in the modes without identifying a photon number for any individual one of the modes; and a beam combiner positioned to combine the modes after output from the non-destructive detection system.