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Single Photon System

24.08.2011 | Ref.Nr. 10058

Physics&Engineering

AFM image of the fiber core region showing a nanodiamond (~ 30 nm in diameter) as single photon emitter (marked by arrow)Background
A single photon system consists of an excitation source, for example a laser, a single photon emitter and components collecting the emitted photons and coupling it into an optical fiber. Usually the propagation direction of the single photons is opposite to the propagation direction of the optical pump radiation.

Technology

The invention is a very compact single photon system, where the propagation direction of the emitted single photons corresponds to the propagation direction of the optical pump radiation.

IP Rights
US Patent Application September 2010
German Patent Application March 2011

Patent Owner
Humboldt-Universität zu Berlin, Germany
Technische Universität Darmstadt, Germany

Application Area:

Quantum cryptography, Quantum computation, Quantum communication, Quantum metrology

Development Stage: Prototype

Schlagworte: quantum cryptography, single photon system,

Weitere Kategorien: Communication, Optoelectronics, Physics & Engineering

Licensing Manager: Dr. Kirk Haselton

T +49 30 2125 4842

F +49 30 2125 4822

kirk.haselton@ipal.de

Suitable Industry: Optoelectronic, Computer Industry, Information Technology

Benefits:

very compact single photon emission system (a few cm³)
fiber integrated single photon source
nano-/ microscopic single photon emitter
operating at room temperature