超快脉冲传播的时间域动态在分散的单维光子波导中
Ahmet Oguz Sakin1, Ali Murat Demirtas1, Hamza Kurt2
1Department of Electrical and Electronics Engineering, TOBB University of Economics and Technology, Ankara 06560, Türkiye.
Nanophotonics (Berlin, Germany)
|February 19, 2025
概括
这项研究引入了在集成波导中超快脉冲传播的新设计,提高了峰值功率和时间分辨率. 该方法优化了一维格子波导,用于先进的光物质相互作用.
科学领域:
- 光子学和光物质相互作用
- 集成光学和波导设计.
- 超快的光学和脉冲操纵.
背景情况:
- 超快脉冲 (<100 fs) 对于精确的光物质相互作用至关重要,但在传统的光子平台上面临挑战.
- 具有非线性和高分散性质的集成波导限制了实现超快脉冲的高峰功率和时间分辨率.
- 现有的芯片平台没有针对超快的时间域操作进行优化,阻碍了性能.
研究的目的:
- 介绍一种设计方法,以优化分散式集成波导中的超快脉冲传播.
- 增强一维格子波导 (1DGWs) 的时间域特征,特别是峰值功率和时间分辨率.
- 为了确定最大峰值功率,改善时间分辨率和延长脉冲存储时间的最佳结构参数.
主要方法:
- 在1DGW中开发超快脉冲传播的设计方法.
- 在在绝缘体 (SOI) 平台上制造两个专门的1DGW.
- 使用数字有限脉冲响应 (FIR) 模型与传输和相位数据进行训练,以提取时间域特征.
主要成果:
- 实现了超快脉冲的峰值功率增加2.8倍.
- 减少了24%的脉冲扩张,保持了时间分辨率.
- 在制造的1DGW中证明了增强的时间域特征.
结论:
- 拟议的设计方法有效地提高了分散式集成波导中的超快脉冲传播.
- 优化的1DGW显示了峰值功率的显著改善和脉冲扩展的减少.
- 这项工作为集成光子系统中先进的光物质相互作用提供了途径.
相关概念视频
Propagation Speed of Electromagnetic Waves
3.3K
Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:
3.3K
Propagation of Waves
2.3K
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...
2.3K
Speed of a Transverse Wave
1.5K
The speed of a wave depends on the characteristics of the medium. For example, in the case of a guitar, the strings vibrate to produce the sound. The speed of the waves on the strings and the wavelength determine the frequency of the sound produced. The strings on a guitar have different thicknesses but may be made of similar material. They have different linear densities, and the linear density is defined as the mass per length.
One of the key properties of any wave is the wave speed. Light...
One of the key properties of any wave is the wave speed. Light...
1.5K
Traveling Waves: Lossless Lines
115
The provided content explores the behavior of traveling waves on single-phase lossless transmission lines. It begins with a single-phase two-wire lossless transmission line of length Δx, characterized by a loop inductance LH/m and a line-to-line capacitance C F/m. These parameters result in a series inductance LΔx and a shunt capacitance CΔx.
115
Standing Waves in a Cavity
850
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
850


