OPTICAL TRANSMITTER FOR A QUANTUM KEY DISTRIBUTION SYSTEM

OPTICAL TRANSMITTER FOR A QUANTUM KEY DISTRIBUTION SYSTEM

An optical transmitter for a Quantum Key Distribution (QKD) system, the transmitter comprising: a multi-modal laser; a wavelength tuneable laser arranged to inject light into a cavity of the multi-modal laser, so as to cause the multi-modal laser to output light at a selected wavelength for use in g...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WOODWARD, Robert Ian, GRIFFITHS, Benjamin, SHIELDS, Andrew James, DYNES, James F
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:An optical transmitter for a Quantum Key Distribution (QKD) system, the transmitter comprising: a multi-modal laser; a wavelength tuneable laser arranged to inject light into a cavity of the multi-modal laser, so as to cause the multi-modal laser to output light at a selected wavelength for use in generating pulses to be output by the transmitter; and a modulator for controlling a phase shift between successive pulses output from the transmitter.