EDFA中继长距离共驱半导体激光器混沌同步研究

doi:10.3969/j.issn.0255-8297.2022.03.001

应用科学学报 ›› 2022, Vol. 40 ›› Issue (3): 361-371.doi: 10.3969/j.issn.0255-8297.2022.03.001

EDFA中继长距离共驱半导体激光器混沌同步研究

董红霞^1,2, 高华^1,2, 王龙生^1,2, 杨毅彪^1,2, 王安帮^1,2

1. 太原理工大学物理与光电工程学院, 山西太原 030024;
2. 太原理工大学新型传感器与智能控制教育部重点实验室, 山西太原 030024

收稿日期:2021-04-28 发布日期:2022-05-25
通信作者: 王安帮,教授,博导,研究方向为混沌激光的产生及应用。E-mail:wanganbang@tyut.edu.cn E-mail:wanganbang@tyut.edu.cn
基金资助:
国家自然科学基金(No.6203000174)资助

EDFA-Relaying Long-Haul Chaos Synchronization of Semiconductor Lasers Driven by a Common Signal

DONG Hongxia^1,2, GAO Hua^1,2, WANG Longsheng^1,2, YANG Yibiao^1,2, WANG Anbang^1,2

1. College of Physics and Optoelectronics, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China;
2. Key Laboratory of Advanced Transducers and Intelligent Control System, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China

Received:2021-04-28 Published:2022-05-25

摘要/Abstract

摘要： 该文数值研究了基于EDFA中继和周期色散补偿的长距离共驱半导体激光器混沌同步方案。通过优化驱动光注入条件及激光器弛豫频率失配，实现了同步系数0.98的响应激光器背靠背同步，同时将驱动与响应的相关性降低至0.32，保障了共驱同步安全性。进一步，考虑光纤色散、非线性效应以及EDFA噪声等损伤因素，数值研究了入纤光功率、单跨段光纤长度的最优条件。预期在每百公里光纤链路中色散补偿偏差为5 ps/nm的情况下，可以实现700 km、同步系数0.90的高质量混沌同步。研究结果对长距离混沌激光载波通信及密钥分发具有参考意义。

关键词: 混沌同步, 光纤传输, 色散补偿, 半导体激光器, 混沌通信, 密钥分发

Abstract: This paper numerically studies the long-haul chaotic synchronization scheme of semiconductor lasers driven by a common signal based on erbium-doped fiber amplifier (EDFA) relay and periodic dispersion compensation. By optimizing the injection conditions of the driving light and the mismatch of the relaxation oscillation frequency between driving and response lasers, the response laser achieves synchronization with a synchronization coefficient of 0.98 in back-to-back situations. At the same time, the correlation between the driving and response lasers is reduced to 0.32, ensuring the security of the co-drive synchronization system. Furthermore, considering the damage factors such as fiber dispersion, nonlinear effects, and EDFA noise, the optimal conditions for fiber input power and single-span fiber length are numerically studied. It is expected that under the condition of dispersion compensation deviation of 5 ps/nm per 100 km fiber, a high-quality chaotic synchronization with a synchronization coefficient of 0.90 can be achieved after 700 km of fiber transmission. This research result has reference significance for long-distance chaotic laser carrier communication and key distribution.

Key words: chaos synchronization, fiber transmission, dispersion compensation, semiconductor lasers, chaos communication, key distribution

中图分类号:

TN918.8

董红霞, 高华, 王龙生, 杨毅彪, 王安帮. EDFA中继长距离共驱半导体激光器混沌同步研究[J]. 应用科学学报, 2022, 40(3): 361-371.

DONG Hongxia, GAO Hua, WANG Longsheng, YANG Yibiao, WANG Anbang. EDFA-Relaying Long-Haul Chaos Synchronization of Semiconductor Lasers Driven by a Common Signal[J]. Journal of Applied Sciences, 2022, 40(3): 361-371.

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EDFA中继长距离共驱半导体激光器混沌同步研究

EDFA-Relaying Long-Haul Chaos Synchronization of Semiconductor Lasers Driven by a Common Signal

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