低损耗和紧,双模式,3dB功率分离器,结合了定向合器,多模式干扰仪和Y连接点
Applied optics
|April 3, 2024
概括
本研究介绍了一种紧的,低损耗的3dB功率分离器,用于模式分割复杂化系统. 该设备有效地将两个最低的横向电 (TE) 模式在C频段中分割,这对于先进的光通信至关重要.
科学领域:
- 光子学和光学工程的工程.
- 集成光学 集成光学 集成光学
- 光学通信系统 光学通信系统
背景情况:
- 多模电源分离器是模式分区复杂化 (MDM) 系统中必不可少的组件.
- 横向电 (TE) 模式的有效分割对于增强光通信能力至关重要.
研究的目的:
- 提出和数值模拟一个新的,紧的,低损耗的,双模式的3dB功率分割器.
- 为了实现两个最低的TE模式 (TE0和TE1) 的高效功率分割.
主要方法:
- 三种光学结构的集成:定向合器,多模干扰仪和Y结.
- 数字模拟用于评估设备性能参数.
- 插入损失,交叉声和合长度的分析.
主要成果:
- 实现了只有7.2微米的合长度.
- 在TE0和TE1模式下,已证明插入损失低于0.1dB.
- 在1520-1580nm波长范围 (C波段) 中,呈现的交叉声低于-20dB.
结论:
- 拟议的设备为双模式3dB功率分割提供了高性能解决方案.
- 它的紧尺寸和低损耗是集成光子电路的优势.
- 宽的工作带宽 (C带) 支持在光通信系统中的实际应用.
相关概念视频
Transmission Line Design Considerations
133
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
133
Design Example: Capacitance Multiplier Circuit
773
In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
773
Maximum Power Transfer
255
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
By substituting the entire circuit with...
255
Series Impedances: Three-Phase Line
103
Calculating series impedances for a three-phase overhead line involves evaluating resistances and inductive reactances in a network with three-phase and multiple neutral conductors grounded at regular intervals.
Using Kirchhoff's laws, an integro-differential equation for the network is derived. This equation accounts for unbalanced phase currents, which may induce return currents through neutral wires and the earth, seeking the least impedance path. Earth return conductors can replace the...
Using Kirchhoff's laws, an integro-differential equation for the network is derived. This equation accounts for unbalanced phase currents, which may induce return currents through neutral wires and the earth, seeking the least impedance path. Earth return conductors can replace the...
103
Impedance Combination
434
Consider a string of christmas lights, each bulb symbolizing an impedance element. In this series configuration, the flow of electric current remains uniform across every component. This behavior aligns with Kirchhoff's Voltage Law (KVL), which asserts that the total impedance in such a setup equals the sum of individual impedances—akin to resistors in series. It follows that the voltage from the power source is distributed proportionally among these components, adhering to the...
434
Energy Stored In A Coaxial Cable
1.5K
A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic...
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic...
1.5K


