Multi-wavelength time-coincident optical communications system and methods thereof

US7574137B1 · kind B1 · utility

Assignee

• The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• John Lekki · Cleveland, US
• Quang-Viet Nguyen · Aldie, US

Key dates

• Filing date: May 5, 2006
• Grant date: Aug 11, 2009
• Expiry date: Jun 1, 2027

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B10/70
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

An optical communications transmitter includes a oscillator source, producing a clock signal, a data source, producing a data signal, a modulating circuit for modulating the clock signal using the data signal to produce modulating signals, optical drivers, receiving the modulating signals and producing optical driving signals based on the modulating signals and optical emitters, producing small numbers of photons based on the optical driving signals. The small numbers of photons are time-correlated between at least two separate optical transmission wavelengths and quantum states and the small number of photons can be detected by a receiver to reform the data signal.