70 Gbit/s fibre based source of fundamental solitons at 1550 nm

Infiltrated bunch of solitons in Bi-doped frequency-shifted feedback fibre laser operated at 1450 nm

Mode-locked fibre laser as a dissipative system is characterized by rich forms of soliton interaction, which take place via internal energy exchange through noisy background in the presence of dispersion and nonlinearity. The result of soliton interaction was either stationary-localized or chaotically-oscillated soliton complexes, which have been shown before as stand-alone in the cavity. Here ...

Heralded single photon source at 1550 nm from pulsed parametric down conversion

ALEXANDRE SOUJAEFF†*, SHIGEKI TAKEUCHI†, KEIJI SASAKI†, TOSHIO HASEGAWA‡, MITSURU MATSUI‡ †Japan Science and Technology Corporation-CREST Project; Research Institute for Electronic Science, Hokkaido University, Kita-12 Nishi-6, Kita-ku, Sapporo 060-0812, Japan, Tel +81-11-706-2648, Fax +81-11-706-3693 ‡Mitsubishi Electric Corporation, Ofuna 5-1-1, Kamakura, 247-8501, Japan, TEL +81467-41-2561, ...

Quantum key distribution at 1550 nm using a pulse heralded single photon source.

Quantum 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 Absorption of Silicon Nitride Membranes at 1064 nm and at 1550 nm

Fiber-optic quantum key distribution at 1550 nm

Quantum key distribution (QKD) invented by Bennett and Brassard in 1984 is a technique for sharing an assuredly secret, cryptographic key over unsecured optical links [1]. In QKD, information is encoded in the quantum state of individual photons and security is guaranteed by photons' fundamental quantum properties. Since the first demonstration of QKD over 40 cm in 1992, QKD has been extensivel...