Quantum key distribution (QKD) is a new technique using physics laws for securing key exchanges. Here we report a new phase-encoding technique adapted to free-space communications. The method combines a direct-modulation scheme with a WDM synchronisation allowing to achieve a reduced size and stabilized system.
Practical single sideband modulation scheme for free-space quantum cryptography
2005-01-01
879286 byte
Conference paper
Electronic Resource
English
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