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. 10, 2018
Filed:
Jul. 29, 2015
Los Alamos National Security, Llc, Los Alamos, NM (US);
Jane Elizabeth Nordholt, Los Alamos, NM (US);
Richard John Hughes, Los Alamos, NM (US);
Raymond Thorson Newell, Santa Fe, NM (US);
Charles Glen Peterson, Los Alamos, NM (US);
Alexander Rosiewicz, Stow, MA (US);
Los Alamos National Security, LLC, Los Alamos, NM (US);
Abstract
Random number generators include a thermal optical source and detector configured to produce random numbers based on quantum-optical intensity fluctuations. An optical flux is detected, and signals proportional to optical intensity and a delayed optical intensity are combined. The combined signals can be electrical signals or optical signals, and the optical source is selected so as to have low coherence over a predetermined range of delay times. Balanced optical detectors can be used to reduce common mode noise, and in some examples, the optical flux is directed to only one of a pair of balanced detectors.