Flat broadband chaotic carrier generation and synchronization

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

Abstract
The chaotic carrier with smooth spectrum and broad bandwidth is generated by a distributed feedback （DFB） semiconductor laser subject to unidirectional fiber ring optical feedback. The smooth spectrum of the obtained chaotic carrier hides the external cavity resonance frequency peak，therefore the security of the system is enhanced. By unidirectional coupling，we implement the stable chaos synchronization when the chaotic light is injected into a solitary DFB laser diode. The correlation coefficient of synchronization is 0.84. The effects of injection strength and optical frequency detuning on synchronization are investigated experimentally. The results show that in conditions of strong injected locking the synchronization can be achieved in a large range of frequency detuning，and the stronger injection corresponds to the larger range of frequency detuning in which chaos synchronization maintains. The synchronization quality improves with the injection strength increasing.

Keywords:
chaos synchronization /

unidirectional fiber ring /

optical feedback /

semiconductor laser
Authors and contacts
Zhang Xiu-Juan,

Wang Bing-Jie,

Yang Ling-Zhen,

Wang An-Bang,

Guo Dong-Ming,

Wang Yun-Cai

1.
太原理工大学理学院物理系，太原 030024
References

Cited By

留言板