Femtosecond Laser--Pumped Source of Entangled Photons for Quantum Cryptography Applications
Conference
·
· Photon Counting Application, Quantum Optics, and Quantum Cryptography (SPIE, Bellingham, WA)
OSTI ID:910451
- Laboratory for Laser Energetics, University of Rochester, Rochester, NY
We present an experimental setup for generation of entangled-photon pairs via spontaneous parametric down-conversion, based on the femtosecond-pulsed laser. Our entangled-photon source utilizes a 76-MHz-repetition-rate, 100-fs-pulse-width, mode-locked, ultrafast femtosecond laser, which can produce, on average, more photon pairs than a cw laser of an equal pump power. The resulting entangled pairs are counted by a pair of high-quantum-efficiency, single-photon, silicon avalanche photodiodes. Our apparatus is intended as an efficient source/receiver system for the quantum communications and quantum cryptography applications.
- Research Organization:
- Laboratory for Laser Energetics, University of Rochester
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC52-92SF19460
- OSTI ID:
- 910451
- Report Number(s):
- DOE/SF/194060-765; 2007-46; 1733
- Conference Information:
- Journal Name: Photon Counting Application, Quantum Optics, and Quantum Cryptography (SPIE, Bellingham, WA) Journal Volume: 6583
- Country of Publication:
- United States
- Language:
- English
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