相关实验视频
Updated: Jul 12, 2026
09:10
Fabrication and Testing of Microfluidic Optomechanical Oscillators
Published on: May 29, 2014
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概括
本研究介绍了一种使用热光学 (TO) 相位变换器的全光学开关. Mach-Zehnder干扰仪 (MZI) 开关展示了光学信号处理的宽带性能.
科学领域:
- 光子学和光学工程 光子学和光学工程
- 材料科学用于光电子学.
背景情况:
- 全光开关对于高速光通信网络至关重要.
- 热光学 (TO) 相变器为光学切换提供了一个可行的机制.
- 光子学为集成光学设备提供了一个可扩展的平台.
研究的目的:
- 为了实验证明一种基于的马赫-泽恩德干扰仪 (MZI) 的热光学 (TO) 开关.
- 描述拟议设备的宽带切换性能,交叉声和插入损失.
- 评估 TO 开关在被动光学网络中的潜在应用.
主要方法:
- 使用金属加热器制造一个基于MZI的1x8TO开关.
- 切换性能的实验测量,包括C频段的交叉声和插入损失.
- 1x2 MZI单元的π相位移功率 (Pπ) 和切换时间 (上升和下降) 的表征.
主要成果:
- 基于MZI的1x8TO开关实现了C频段的宽带开关.
- 最坏的情况下,交叉声量为15.2dB,最小插入损失为5.0dB.
- 1x2 MZI 单元显示了 46.2 mW 的 Pπ 和 1.7 μs (上升) 和 4.4 μs (下降) 的切换时间.
结论:
- 展示的TO开关提供了高效的宽带光学开关功能.
- 该设备展示了可靠的性能指标,用于集成到光通信系统.
- 潜在的应用包括用于被动光网络的全光信号处理中的远程控制.
相关概念视频
01:18Imaging Biological Samples with Optical Microscopy
Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
01:26Phase Contrast and Differential Interference Contrast Microscopy
Phase-Contrast Microscopes
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...