Title :
All-optical CDMA system with enhanced security based on variable two-code keying
Author :
Hongxia Zheng;Jianhua Ji;Wenjun Li
Author_Institution :
Shenzhen Key Lab of Communication and Information Processing, Shenzhen University, Shenzhen, China
Abstract :
We put forward the first all-optical optical code-division multiple-access(OCDMA) system with 2 users based on variable code shift keying(CSK). The all-optical exclusive OR logical gate in the system employs the ultrafast performance of optical fiber nonlinear effect and operates without wavelength transforming. In our system, the data rate is 10Gb/s and the transmission distance in optical fiber of G.652 is 20 km. A quantitative analysis of data confidentiality is presented. Compared with other secure systems, our system can greatly improve the confidentiality of the transmitted information.
Keywords :
"Optical fibers","Adaptive optics","Optical pulses","Optical fiber dispersion","Optical transmitters","Encryption"
Conference_Titel :
Optoelectronics Global Conference (OGC), 2015
Print_ISBN :
978-1-4673-7731-7
DOI :
10.1109/OGC.2015.7336873
