Abstract

Optical injection into a chaotic laser under feedback is investigated for dimension enhancement. Although injecting a solitary laser is known to be low-dimensional, injecting the laser under feedback is found to enhance the correlation dimension D₂ in experiments. Using an exceptionally large data size with a very large reconstruction embedding dimension, efficient computation is enabled by averaging over many short segments to carefully estimate D₂. The dimension enhancement can be achieved together with time-delay signature suppression. The enhancement of D₂ as a fundamental geometric quantifier of attractors is useful in applications of chaos.

© 2022 Optical Society of America

Chaotic optical communications of 12.5-Gbaud OOK and 10-Gbaud QPSK signals based on mutual injection of semiconductor lasers

Shunkai Xiang, Min Yang, and Jian Wang
Opt. Lett. 47(11) 2818-2821 (2022)

Time-delay signature suppression in a chaotic semiconductor laser by fiber random grating induced random distributed feedback

Yanping Xu, Mingjiang Zhang, Liang Zhang, Ping Lu, Stephen Mihailov, and Xiaoyi Bao
Opt. Lett. 42(20) 4107-4110 (2017)

Random bit generation at tunable rates using a chaotic semiconductor laser under distributed feedback

Xiao-Zhou Li, Song-Sui Li, Jun-Ping Zhuang, and Sze-Chun Chan
Opt. Lett. 40(17) 3970-3973 (2015)

Chaotic characteristics enhancement by introducing optical feedback into a sole intensity modulation optical injection system

Yao Zeng, Youming Wang, Shuangquan Gu, Yu Huang, Pei Zhou, Penghua Mu, and Nianqiang Li
J. Opt. Soc. Am. B 40(7) 1726-1734 (2023)

Time-delay concealment and complexity enhancement of an external-cavity laser through optical injection

Nianqiang Li, Wei Pan, A. Locquet, and D. S. Citrin
Opt. Lett. 40(19) 4416-4419 (2015)