Title :
1-GHz optical communication system using chaos in erbium-doped fiber lasers
Author :
Luo, L.G. ; Chu, P.L. ; Liu, H.F.
Author_Institution :
Sch. of Electr. Eng. & Telecommun., New South Wales Univ., Kensington, NSW, Australia
fDate :
3/1/2000 12:00:00 AM
Abstract :
We experimentally demonstrated an optical communication system based on synchronized chaos between the transmitter and receiver with a sinusoidal signal of 1 GHz. In addition, we also experimented with the modulation of the system by a random bit stream at 140 Mb/s. Both experiments showed that the messages could be recovered at the receiver with a reasonable signal-to-noise ratio. These messages are directly embedded into the chaos through an electrooptic modulator in the transmitter. At the receiver the message is successfully recovered by both the subtracting method and the dividing method.
Keywords :
electro-optical modulation; erbium; fibre lasers; optical chaos; optical fibre communication; optical noise; optical receivers; optical transmitters; ring lasers; synchronisation; telecommunication security; 1 GHz; 140 Mbit/s; Er-doped fiber lasers; chaos; dividing method; electrooptic modulator; messages; modulation; optical communication system; random bit stream; receiver; signal-to-noise ratio; sinusoidal signal; subtracting method; synchronized chaos; transmitter; Chaotic communication; Electrooptic modulators; Erbium-doped fiber lasers; Lasers and electrooptics; Optical coupling; Optical fiber communication; Optical fiber couplers; Optical fiber polarization; Optical receivers; Optical transmitters;
Journal_Title :
Photonics Technology Letters, IEEE
