Title :
Numerical study for secure communication using chaotic masking method in two microchip lasers
Author :
Ogawa, T. ; Shinozuka, M. ; Shimamura, Y. ; Uchida, A. ; Yoshimori, S. ; Kannari, F.
Author_Institution :
Dept. of Electr. Eng., Keio Univ., Yokohama, Japan
Abstract :
We numerically demonstrate recovery of message signal embedded in a chaotic carrier in microchip lasers. Message recovery requires that the signal frequency should be set at lower frequencies than the sustained relaxation oscillation frequency, where the difference of the gain between chaotic and periodic components is large.
Keywords :
acousto-optical modulation; cryptography; microcavity lasers; optical chaos; optical communication; optical transfer function; synchronisation; telecommunication security; acoustic optic modulator; amplitude transfer functions; chaotic components; chaotic masking method; gain difference; low frequency region; message signal recovery; microchip lasers; periodic components; phase transfer function; secure communication; sustained relaxation oscillation frequency; synchronization; transmitted chaotic waveform; Chaos; Chaotic communication; Electronic mail; Frequency synchronization; Laser theory; Microchip lasers; Optical modulation; Optical receivers; Pump lasers; Transfer functions;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.970995
