Enhancing performance of optical chaotic-based secure fiber-optic communication system

被引：6
作者：
Abdulwahhab, Ahmed W. [1 ]
Abass, A. K. [1 ]
Saleh, Mohammed A. [2 ]
Rashid, Fareed F. [3 ]
机构：
[1] Univ Technol Iraq, Laser & Optoelect Engn Dept, Baghdad, Iraq
[2] Al Iraqia Univ, Coll Educ, Phys Dept, Baghdad, Iraq
[3] Al Farahidi Univ, Med Tech Coll, Med Instruments Tech Engn Dept, Baghdad, Iraq
来源：
OPTICAL AND QUANTUM ELECTRONICS | 2023年 / 55卷 / 05期
关键词：
Optical chaos; Laser rate equations; Secure optical communications; SIGNAL TRANSMISSION; BAND CHAOS;
D O I：
10.1007/s11082-023-04757-1
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Data security is essential for applications that require a significant level of data privacy. Online banking and government mailing are good examples of data with security requirements. This paper demonstrates an enhanced secure fiber-optic communication system based on chaos using Optisystem 7.0 software. A 10 Gb/s externally modulated signal is transmitted over 100 km of standard single-mode fiber. The modulated data is hidden by a chaotic optical signal generated by controlling the rate parameters of a semiconductor laser. The results showed that chaos degrades the overall system performance and limits the transmission distance to 70 km. A chirped fiber-Bragg grating and erbium-doped fiber amplifier are introduced to compensate signal dispersion and to increase the transmission distance to 104 km (80% enhancement). Also, the results revealed that maximum Q -factor of 4.2 and a minimum bit error rate of 10(-8) are successfully recovered the data at the receiver.
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页数：15
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