2024-03-29T13:10:40Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/496062022-11-17T02:08:08Zhdl_2115_20057hdl_2115_148Quantum key distribution at 1550 nm using a pulse heralded single photon sourceSoujaeff, AlexandreNishioka, TsuyoshiHasegawa, ToshioTakeuchi, ShigekiTsurumaru, ToyohiroSasaki, KeijiMatsui, Mitsuru425Quantum key distribution with pulsed heralded single photon source was performed over 40 km of fiber for the first time to our knowledge. QBER was measured to be 4.23% suggesting security against unconditional attack.Optical Society of AmericaJournal Articleapplication/pdfhttp://hdl.handle.net/2115/49606https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/49606/1/OE15-2_726-734.pdf1094-4087Optics Express1527267342007-01-22enginfo:doi/10.1364/OE.15.000726© 2007 Optical Society of Americapublisher