Title :
Fast physical random bit generator based on chaotic semiconductor lasers: Application to quantum cryptography
Author :
Uchida, Atsushi ; Honjo, Toshimori ; Amano, Kazuya ; Hirano, Kunihito ; Someya, Hiroyuki ; Okumura, Haruka ; Yoshimori, Shigeru ; Yoshimura, Kazuyuki ; Davis, Peter ; Tokura, Yasuhiro
Author_Institution :
Dept. of Inf. & Comput. Sci., Saitama Univ., Saitama, Japan
Abstract :
We report on the application of a fast physical random bit generator based on chaotic semiconductor lasers to generation of random pulse sequences at 1.0 Gpps (giga pulses per second) in a quantum key distribution system. We generate a random binary signal at 1.0 Gbps and use it to modulate the phase of optical pulses transmitted in the differential-phase-shift quantum-key-distribution (DPS-QKD) scheme.
Keywords :
differential phase shift keying; optical pulse generation; quantum cryptography; random number generation; DPS-QKD scheme; bit rate 1 Gbit/s; chaotic semiconductor lasers; differential-phase-shift quantum-key-distribution scheme; fast physical random bit generator; optical pulses; quantum cryptography; quantum key distribution system; random binary signal generation; random pulse sequence generation; Chaos; Cryptography; Laser applications; Laser theory; Optical pulse generation; Optical pulses; Phase modulation; Pulse modulation; Semiconductor lasers; Signal generators;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5192510
