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  • Quantum Electronics and Laser Science Conference
  • OSA Technical Digest (Optica Publishing Group, 1999),
  • paper QWA4

Experiments on long wavelength (1550 nm) “plug and play” quantum cryptography systems

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Abstract

Quantum cryptography is a technique for establishing a fundamentally secure cryptographic key, using the encoding of the key on single photon pulses.1 In the recent years here has been a remarkable progress in experimental implementations at 1300 nm wavelength.2−4 However, for 1550 nm wavelength, there are few results, as the performance of single photon detectors for 1550 nm has been considered in-sufficient.

© 1999 Optical Society of America

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