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Experimental Quantum Key Distribution over 14.8 km in a Special Optical Fibre |
| GUI You-Zhen;HAN Zheng-Fu;MO Xiao-Fan;GUO Guang-Can |
| Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei 230026 |
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| Cite this article: |
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GUI You-Zhen, HAN Zheng-Fu, MO Xiao-Fan et al 2003 Chin. Phys. Lett. 20 608-610 |
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Abstract We present an experimental setup for quantum key distribution in a special optical fibre at the wavelength of 850 nm. The system employs the BB84 protocol to establish a secret key between Alice and Bob over 14.8 km. The key is encoded in the phase of very weak laser of average photon number 0.11 per pulse. The measured error rate is lower than 10%.
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| Keywords:
03.67.Dd
03.67.Hk
42.79.Sz
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Published: 01 May 2003
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| PACS: |
03.67.Dd
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(Quantum cryptography and communication security)
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03.67.Hk
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(Quantum communication)
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42.79.Sz
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(Optical communication systems, multiplexers, and demultiplexers?)
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