Propagation through turbulent media produces complex amplitude fluctuations and temporal spreading of narrow optical pulses. Light-absorbing aerosols present in the atmospheric transmission path will perturb the refractive index structure parameter ($\textrm{C}_\textrm{n}^2$) through atmospheric heating. The consequent enhancement in broadening and attenuation of ultrashort (femtosecond) optical pulses has been calculated by combining multi-satellite observations, radiosonde profiles and computational radiative transfer. It is shown that narrower optical pulses are more vulnerable to aerosol-induced impairments while broader pulses are more resilient, notwithstanding three to four orders of enhanced optical scintillation.

中文翻译：

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由于大气气溶胶的辐射效应，在自由空间光链路中增强了光脉冲展宽

通过湍流介质的传播会产生复杂的幅度波动和窄光脉冲的时间扩展。大气传输路径中存在的吸光气溶胶会通过大气加热扰动折射率结构参数（$ \ textrm {C} _ \ textrm {n} ^ 2 $）。超短（飞秒）光脉冲的加宽和衰减的增强结果已经通过结合多卫星观测，无线电探空仪剖面图和计算辐射传递进行了计算。结果表明，尽管光闪烁增强了三到四个数量级，但较窄的光脉冲更容易受到气溶胶引起的损害，而较宽的脉冲则更具弹性。