Long-distance copropagation of quantum key distribution and terabit classical optical data channels
Long-distance copropagation of quantum key distribution and terabit classical optical data channels
Quantum key distribution (QKD) generates symmetric keys between two remote parties and guarantees the keys are not accessible to any third party. Wavelength-division multiplexing between QKD and classical optical communications by sharing the existing fiber-optics infrastructure is highly desired in order to reduce the cost of QKD applications. However, comparing …