Continuous operation of a one-way quantum key distribution system over installed telecom fibre
Preprint
Abstract
We demonstrate a robust, compact and automated quantum key distribution system, based upon a one-way Mach-Zender interferometer, which is actively compensated for temporal drifts in the photon phase and polarization. The system gives a superior performance to passive compensation schemes with an average quantum bit error rate of 0.87% and a duty cycle of 99.6% for a continuous quantum key distribution session of 19 hours over a 20.3km installed telecom fibre. The results suggest that actively compensated QKD systems are suitable for practical applications.Keywords
All Related Versions
- Version 1, 2005-01-26, ArXiv
- Version 2, 2005-02-15, ArXiv
- Published version: Optics Express, 13 (2), 660.
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