概括
这项研究介绍了一种具有成本效益的,无激光的200G PON架构,用于局部振荡器生成远程音调. 这简化了连贯接收,并减少了高速光学网络的ONU带宽要求.
科学领域:
- 光学通信是指光学通信.
- 电信工程 电信工程 电信工程
- 光子学 是一个光子学.
背景情况:
- 连贯检测对于超越200G的被动光学网络 (PON) 至关重要.
- 由于高成本的局部振荡器 (LO) 激光器,目前的连贯技术对于PON部署来说太昂贵了.
- 需要简化和成本效益的连贯PON解决方案.
研究的目的:
- 为200G对称系统提出一种新的无激光,简化的连贯PON架构.
- 为了降低光网络单元 (ONU) 中连贯接收器的成本和复杂性.
- 提高高速PON的性能和实用性.
主要方法:
- 提出了一个基于无激光ONU的200G对称简化的连贯PON架构.
- 一个远程音调 (RT) 传输到ONU作为LO和上游 (US) 信号源.
- 两个波长用于下游 (DS) 和美国信号;阿拉木图编码用于偏振独立.
主要成果:
- 拟议的架构将ONU的光电子带宽要求显著降低到13.75GHz.
- 与在带限条件下异质连贯检测相比,系统灵敏度提高了大约4dB.
- 200G双向对称系统的功率预算为37dB (DS) 和31.5dB (US).
结论:
- 无激光,简化的连贯PON架构为超越200G系统提供了实用和成本效益的解决方案.
- 该系统表现出对极化状态的稳定性和提高的灵敏度,使其适用于非常高速的PON.
- 这种方法有效降低了在PON中部署先进的连贯技术的成本障碍.
相关概念视频
01:24One-Degree-of-Freedom System
1.0K
In mechanical engineering, one-degree-of-freedom systems form the basis of a wide range of electrical and mechanical components. Using these models, engineers can predict the behavior of various parts in a larger system, which gives them insight into how different forces interact with each other.
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
A one-degree-of-freedom system is defined by an independent variable that determines its state and behavior. One example of a one-degree-of-freedom system is a simple harmonic oscillator, such as a...
1.0K
01:15Beams with Symmetric Loadings
548
The moment-area method is an analytical tool used in structural engineering to determine the slope and deflection of beams under various loads. Consider a cantilever with a concentrated load and moment at the free end. The first step is constructing a free-body diagram to calculate the reactions at the fixed end. Next, the bending moment diagram is plotted to visualize how the bending moment varies along the beam's length, focusing on points where the bending moment equals zero.
The M/EI...
The M/EI...
548