相关实验视频
Updated: Jul 1, 2026

09:36
Characterization of Anisotropic Leaky Mode Modulators for Holovideo
Published on: March 19, 2016
概括
深度学习加速了用于模式转换的光子设备的设计. 这一新平台使集成光学设备的快速,高性能开发成为可能.
科学领域:
- 光子学和光学工程 光子学和光学工程
- 材料科学 材料科学 材料科学
- 人工智能的人工智能
背景情况:
- 光子设备对于光通信和计算至关重要.
- 对于光子设备的传统设计方法通常是耗时和复杂的.
- 深度学习为加速设计过程提供了一个有希望的途径.
研究的目的:
- 开发基于深度神经网络 (DNN) 的平台,用于预测和逆向设计半导体设备.
- 为了实现高性能模式转换器的快速和高效的设计.
- 通过实验验证来验证平台的预测和设计.
主要方法:
- 开发一个深度神经网络 (DNN) 平台,用于预测光子设备的性能.
- 利用DNN平台对基于的模式转换器进行反向设计.
- 设计模式转换器的实验制造和表征.
主要成果:
- 该DNN平台实现了快速性能预测 (5毫秒) 的高精度 (RMSE<0.018).
- 反向设计在最短的时间 (10 ms) 中产生了超紧模式转换器 (4.08 μm × 1.68 μm).
- 实验结果证实了设计的设备的性能,插入损失与预测密切匹配.
结论:
- 基于DNN的方法显著加速了高性能模式转换器的开发.
- 这个平台为先进的模式分割多重复合系统提供了必不可少的组件.
- 这项研究表明了深度学习在集成光子学中的快速反向设计的潜力.
相关概念视频
Inverting and Non-inverting OpAmps
In an inverting amplifier, the input voltage is connected through a resistor to the inverting terminal. Meanwhile, the non-inverting terminal is grounded and a feedback resistor is established between the inverting and output terminal, as depicted in Figure 1.
Semiconductors
There is variation in the electrical conductivity of materials - metals, semiconductors, and insulators that are showcased with the help of the energy band diagrams.
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
Metals such as copper (Cu), zinc (Zn), or lead (Pb) have low resistivity and feature conduction bands that are either not fully occupied or overlap with the valence band, making a bandgap non-existent. This allows electrons in the highest energy levels of the valence band to easily transition to the conduction band upon gaining...
Design Example: Capacitance Multiplier Circuit
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.
Biasing of FET
Biasing a Junction Field Effect Transistor (JFET) is crucial for setting operational parameters and ensuring efficient functioning in electronic circuits. JFETs are characterized by using a single carrier type in N-channel or P-channel configurations, where the channel is surrounded by PN junctions. These junctions are central to the device's ability to control current flow.
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the gate...
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the gate...
MOSFET: Enhancement Mode
Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no current...
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no current...
MOSFET: Depletion Mode
Depletion-mode MOSFETs represent a unique subset of MOSFET technology, functioning fundamentally differently from their enhancement-mode counterparts. Unlike enhancement MOSFETs, which require a positive gate-source voltage (Vgs) to turn on, depletion-mode MOSFETs are inherently conductive and "normally on" devices.
The primary characteristic of depletion-mode MOSFETs is their ability to conduct current between the drain and source terminals without gate bias. This inherent conductivity arises...
The primary characteristic of depletion-mode MOSFETs is their ability to conduct current between the drain and source terminals without gate bias. This inherent conductivity arises...

