QKD in Standard Optical Telecommunications Networks
arXiv:1006.1858 · doi:10.1007/978-3-642-11731-2_18
Abstract
To perform Quantum Key Distribution, the mastering of the extremely weak signals carried by the quantum channel is required. Transporting these signals without disturbance is customarily done by isolating the quantum channel from any noise sources using a dedicated physical channel. However, to really profit from this technology, a full integration with conventional network technologies would be highly desirable. Trying to use single photon signals with others that carry an average power many orders of magnitude bigger while sharing as much infrastructure with a conventional network as possible brings obvious problems. The purpose of the present paper is to report our efforts in researching the limits of the integration of QKD in modern optical networks scenarios. We have built a full metropolitan area network testbed comprising a backbone and an access network. The emphasis is put in using as much as possible the same industrial grade technology that is actually used in already installed networks, in order to understand the throughput, limits and cost of deploying QKD in a real network.
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- Long distance co-propagation of quantum key distribution and terabit classical optical data channels
- Google in a Quantum Network
- Quantum Google in a Complex Network
- Secure Optical Networks Based on Quantum Key Distribution and Weakly Trusted Repeaters
- Integration of quantum key distribution and gigabit-capable passive optical network based on wavelength-division multiplexing
- A high-speed multi-protocol quantum key distribution transmitter based on a dual-drive modulator
- Discrete-time quantum walk algorithm for ranking nodes on a network
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- Information Reconciliation for Quantum Key Distribution