通过大气湍流进行自由空间光通信的光纤耦合效率。
Fiber-coupling efficiency for free-space optical communication through atmospheric turbulence.
作者信息
Dikmelik Yamaç, Davidson Frederic M
机构信息
Department of Electrical and Computer Engineering, Johns Hopkins University, 105 Barton Hall, 3400 North Charles Street, Baltimore, Maryland 21218, USA.
出版信息
Appl Opt. 2005 Aug 10;44(23):4946-52. doi: 10.1364/ao.44.004946.
High-speed free-space optical communication systems have recently used fiber-optic components. The received laser beam in such a system must be coupled into a single-mode fiber at the input of the receiver module. However, propagation through atmospheric turbulence degrades the spatial coherence of a laser beam and limits the fiber-coupling efficiency. We numerically evaluate the fiber-coupling efficiency for laser light distorted by atmospheric turbulence. We also investigate the use of a coherent fiber array as a receiver structure and find that a coherent fiber array that consists of seven subapertures would significantly increase the fiber-coupling efficiency.
高速自由空间光通信系统最近开始使用光纤组件。在这样一个系统中，接收到的激光束必须在接收器模块的输入端耦合到单模光纤中。然而，通过大气湍流的传播会降低激光束的空间相干性，并限制光纤耦合效率。我们通过数值评估了被大气湍流扭曲的激光的光纤耦合效率。我们还研究了使用相干光纤阵列作为接收器结构，并发现由七个子孔径组成的相干光纤阵列将显著提高光纤耦合效率。
Zotero 插件