AI 中文总结
本研究针对自由空间光通信中大气湍流导致结构光信号退化的问题，利用两台空间光调制器模拟湍流环境，评估拉盖尔-高斯等三种光束横模的抗湍流鲁棒性。
AI 中文摘要
结构光已成为高容量、安全的自由空间光通信的有前景资源，而大气湍流仍是导致信号退化的主要来源。本研究探讨了光束的不同横模结构对湍流随机作用的鲁棒性；通过编程空间光调制器（SLM）施加对应所需横模的振幅与相位调制，再将调制后的光束通过由另一台SLM模拟的湍流介质，利用相机测量得到的强度分布对拉盖尔-高斯（Laguerre-Gauss）、厄米-高斯（Hermite-Gauss）及艾里（Airy）光束进行研究，并采用不同的性能指标评估和比较这些模式的鲁棒性。
英文摘要
Structured light has emerged as a promising resource for high-capacity and secure free-space optical communication, where atmospheric turbulence remains a major source of signal degradation. In this work, we investigate the resilience of different transverse mode structures of an optical beam with respect to the random action of turbulence. A spatial light modulator (SLM) is programmed to apply amplitude and phase modulation corresponding to the desired transverse mode, which is then transmitted through a turbulent medium emulated by a second SLM. Laguerre-Gauss, Hermite-Gauss, and Airy beams are investigated through the resulting intensity distributions measured with a camera. Different figures of merit are used to evaluate and compare the resilience of these modes.
Comments13pages, 6figures
