BB84 Quantum Key Distribution System Based on Silica-Based Planar Lightwave Circuits
Yoshihiro Nambu, T. Hatanaka, Kazuo Torii Nakamura · Japanese Journal of Applied Physics · 2004
We constructed an optical interferometer for a Bennett-Brassard quantum key distribution system using integrated optics based on planar lightwave circuit technology, and tested its operation and stability. Experimental results show that this interferometer is useful in implementing a practical quantum key distribution system.