相关实验视频
Updated: Jun 29, 2025

09:36
Characterization of Anisotropic Leaky Mode Modulators for Holovideo
Published on: March 19, 2016
8.0K
一个时间模式脉冲间接器在一个在绝缘器平台的光学模拟到数字转换器
Donghe Tu1,2,3, Zezheng Li1,2,3, Yuxiang Yin1,2,3
1Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China.
Micromachines
|March 28, 2024
概括
我们开发了一个新的在绝缘体上的芯片,可以使用时间模式交叉交叉交叉交叉的光脉冲. 这种紧的设备为光学模拟数字转换器产生高频采样脉冲.
科学领域:
- 光子学 是一个光子学.
- 集成光学 集成光学 集成光学
- 光学通信是指光学通信.
背景情况:
- 产生高频光学采样脉冲对于光学模拟数字转换器 (OADC) 至关重要.
- 现有的交联技术往往需要积极调或是重的.
研究的目的:
- 提出和演示一种新的芯片上光学采样脉冲间接器.
- 为了在在绝缘体 (SOI) 平台上使用时间模式交叉实现高效的脉冲交叉.
主要方法:
- 在220nm SOI平台上制造脉冲间接器.
- 使用单个 S 形延迟波导进行时间模式交错.
- 利用光学模式之间的相对时间延迟在没有主动调的情况下进行交错.
主要成果:
- 成功地将光脉冲转换为四个脉冲的40 GHz脉冲序列.
- 实现了0.9 ps的根平均平方 (RMS) 计时错误.
- 与以前的方案相比,该设备的延迟波导长度显著减少了46.3%.
结论:
- 经过证明的时间模式交联技术为产生高频采样脉冲提供了一个紧而高效的解决方案.
- 这种新型的芯片间接器非常适合用于高速OADC的应用.
- 基于SOI的方法消除了对主动调的需求,简化了设备操作.
相关概念视频
MOSFET: Enhancement Mode
333
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...
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...
333
Integrator and Differentiator
832
Op-amp circuits have significant applications in various fields, including automotive engineering. One such application is cruise control systems in cars, where op-amp circuits are integral for maintaining a constant speed. In these systems, op-amps function as both integrators and differentiators.
An integrator within an op-amp circuit produces an output directly proportional to the integral of the input signal. This is achieved by replacing the feedback resistor in a typical inverting...
An integrator within an op-amp circuit produces an output directly proportional to the integral of the input signal. This is achieved by replacing the feedback resistor in a typical inverting...
832
Discrete-time Fourier transform
314
The Discrete-Time Fourier Transform (DTFT) is an essential mathematical tool for analyzing discrete-time signals, converting them from the time domain to the frequency domain. This transformation allows for examining the frequency components of discrete signals, providing insights into their spectral characteristics. In the DTFT, the continuous integral used in the continuous-time Fourier transform is replaced by a summation to accommodate the discrete nature of the signal.
One of the notable...
One of the notable...
314
Time and frequency -Domain Interpretation of Phase-lead Control
83
Phase-lead controllers are commonly used in various control systems to enhance response speed and stability. Adjusting the brightness on a television screen offers a practical example of phase-lead control. When contrast is enhanced, a phase-lead controller is employed. Mathematically, phase-lead control is identified when the first parameter is smaller than the second.
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
The design of phase-lead control involves the strategic placement of poles and zeros to balance steady-state error and system...
83
Linear Approximation in Time Domain
81
Nonlinear systems often require sophisticated approaches for accurate modeling and analysis, with state-space representation being particularly effective. This method is especially useful for systems where variables and parameters vary with time or operating conditions, such as in a simple pendulum or a translational mechanical system with nonlinear springs.
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length,...
81
Reconstruction of Signal using Interpolation
195
Signal processing techniques are essential for accurately converting continuous signals to digital formats and vice versa. When a continuous signal is sampled with a period T, the resulting sampled signal exhibits replicas of the original spectrum in the frequency domain, spaced at intervals equal to the sampling frequency. To handle this sampled signal, a zero-order hold method can be applied, which creates a piecewise constant signal by retaining each sample's value until the next...
195

