TY - JOUR

T1 - Simulation of Gb/s free space optical secure communication using interband cascade laser chaos

AU - Han, Hong

AU - Xu, Jiada

AU - Cheng, Xumin

AU - Jia, Zhiwei

AU - Zhang, Jianguo

AU - Shore, K. Alan

PY - 2024/3/5

Y1 - 2024/3/5

N2 - We theoretically explore Gb/s message encryption in free space communications exploiting synchronized mid-infrared chaos from unidirectionally coupled interband cascade lasers (ICLs) with optical feedback. The achievable message encryption rate depends on the chaos bandwidth and relaxation frequency oscillation of the ICL which in turn, are determined by the bias current and the number of stages of the ICL. It is shown that message encryption rates up to 4 Gb/s may be obtained with bit error rate (BER) compatible with regular telecommunication systems requirements.

AB - We theoretically explore Gb/s message encryption in free space communications exploiting synchronized mid-infrared chaos from unidirectionally coupled interband cascade lasers (ICLs) with optical feedback. The achievable message encryption rate depends on the chaos bandwidth and relaxation frequency oscillation of the ICL which in turn, are determined by the bias current and the number of stages of the ICL. It is shown that message encryption rates up to 4 Gb/s may be obtained with bit error rate (BER) compatible with regular telecommunication systems requirements.

KW - Chaos laser communication

KW - Mid-infrared lasers

KW - Interband cascade laser

U2 - 10.1016/j.optcom.2024.130424

DO - 10.1016/j.optcom.2024.130424

M3 - Article

VL - 559

JO - Optics Communications

JF - Optics Communications

SN - 0030-4018

M1 - 130424

ER -