Based on the scintillation index of Airy beam and exponentiated Weibull channel model, analytical expressions of outage probability for free-space optical (FSO) communication links with Airy beam as a signal carrier under weak atmospheric turbulence and on–off keying modulation scheme are derived. The outage probability at various propagation distances, transverse scale factors and exponential decay factors has been evaluated. And we compared the outage probability of FSO links with Airy beam and Gaussian beam as a signal carrier. The results show that the outage probability of FSO links with Airy beam as carrier decreases with the increase of threshold parameter and increases with the increase of propagation distance. When the transverse scale factor of Airy beam is about 2 cm, a lower outage probability can be obtained. And the smaller the exponential decay factor of the Airy beam, the lower the outage probability. Under the same source power or source width, the outage probability of FSO links with Airy beam as a carrier is significantly lower than that of FSO links with Gaussian beam as a carrier. The results of this research have some reference significance for the application of Airy beam in FSO communication system.

基于艾里光束的闪烁指数和指数Weibull信道模型，推导了以艾里光束为信号载体的自由空间光（FSO）通信链路在弱大气湍流和开关键控调制方案下中断概率的解析表达式。已经评估了各种传播距离、横向比例因子和指数衰减因子的中断概率。并且我们比较了以艾里光束和高斯光束为信号载体的FSO链路的中断概率。结果表明，以艾里光束为载体的FSO链路中断概率随着阈值参数的增加而减小，随着传播距离的增加而增加。当艾里光束的横向比例因子约为 2 cm 时，可以获得较低的中断概率。并且艾里光束的指数衰减因子越小，中断概率越低。在相同源功率或源宽度下，以艾里波束为载波的FSO链路的中断概率明显低于以高斯波束为载波的FSO链路的中断概率。本研究结果对艾里光束在FSO通信系统中的应用具有一定的参考意义。