Long-haul dense wavelength division multiplexing between a chaotic optical secure channel and a conventional fiber-optic channel

2012 ◽  
Vol 51 (22) ◽  
pp. 5585 ◽  
Author(s):  
Qingchun Zhao ◽  
Hongxi Yin ◽  
Xiaolei Chen
Keyword(s):  
Wavelength Division Multiplexing ◽  
Fiber Optic ◽  
Dense Wavelength Division Multiplexing ◽  
Wavelength Division ◽  
Secure Channel

Wavelength Division Multiplexing between 2.5-Gbits/s Chaotic Optical Secure Channel and 10-Gbits/s Nonchaotic Fiber-Optic Channel

2012 ◽  
Vol 571 ◽  
pp. 457-461 ◽  
Author(s):  
Xiao Lei Chen ◽  
Qing Chun Zhao ◽  
Hong Xi Yin ◽  
Xin Yu Dou
Keyword(s):  
Wavelength Division Multiplexing ◽  
Fiber Optic ◽  
Dispersion Compensation ◽  
Q Factor ◽  
Channel Spacing ◽  
Wavelength Division ◽  
Shift Keying ◽  
Chaos Shift Keying ◽  
Secure Channel

In this paper, we numerically investigate the wavelength division multiplexing (WDM) transmission between chaotic optical secure channel and nonchaotic fiber-optic channel. When the channel spacing is 0.8 nm, a 2.5-Gbits/s message masked by the chaotic optical secure channel and a 10-Gbits/s message carried by the nonchaotic fiber-optic channel can be achieved simultaneously. The results show that the Q-factor of the recovered message can be increased significantly when the launched power is reduced appropriately. The deterioration on the quality of communications caused by fiber dispersion can be compensated obviously when the symmetrical dispersion compensation scheme is adopted. In addition, the message is masked by chaos shift keying in the chaotic optical secure channel. The multiplexing distance between the chaotic optical secure channel and the nonchaotic fiber-optic channel is up to 150 km.

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