概括
使用HOBBIT系统的离轴贝塞尔-高斯束通过找到最佳路径,显著减少了超过91%的水下流效应. 这使得多个光束能够通过扰乱的环境进行可靠的传输.
科学领域:
- 光学和光子学 在光学和光子学.
- 流体动力学 流体动力学
- 光学通信是指光学通信.
背景情况:
- 由于流,水下环境对光束传播具有重大挑战.
- 传统的一轴光束非常容易受到散射和强度波动的影响.
- 贝塞尔-高斯 (BG) 束具有固有的抗性,但需要优化传播策略.
研究的目的:
- 调查离轴贝塞尔-高斯束用于快速探测水下流的有效性.
- 展示一种识别最佳传输路径的方法,以尽量减少光束干扰.
- 评估修改后的高阶贝塞尔束与时间集成 (HOBBIT) 系统在动荡条件下的性能.
主要方法:
- 在修改的高阶贝塞尔束集成与时间 (HOBBIT) 系统中使用离轴贝塞尔-高斯束.
- 快速扫描水下环境以捕捉瞬间的流现象.
- 对比离轴梁的性能与中心轴上的BG梁.
主要成果:
- 与轴上的光束相比,轴外BG光束的闪指数减少了91%以上.
- 通过流介质成功传输了更高阶的贝塞尔-高斯束.
- 强大的,不受干扰的传输路径的识别和表征.
结论:
- 脱轴贝塞尔-高斯束为减轻水下流效应提供了非常有效的解决方案.
- 霍比特系统能够快速识别最佳路径,以实现可靠的光通信.
- 通过这些优化路径同时传输多个光束是可行的.
相关概念视频
Propagation of Waves
2.4K
When a wave propagates from one medium to another, part of it may get reflected in the first medium, and part of it may get transmitted to the second medium. In such a case, the interface of the two mediums can be considered as a boundary that is neither fixed nor free.
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
Consider a scenario where a wave propagates from a string of low linear mass density to a string of high linear mass density. In such a case, the reflected wave is out of phase with respect to the incident wave, however the...
2.4K
Uniform Depth Channel Flow: Problem Solving
125
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
125


