概括
我们开发了一种电光偏振模式转换器,使用扩散酸 (LN) 波导和PANDA偏振维护光纤 (PMF). 该设备可实现高效的横向电 (TE) 到横向磁 (TM) 模式转换,具有波长可调性,用于增强光通信.
科学领域:
- 光子学是指光子学的使用方法.
- 材料科学 材料科学 材料科学
- 光学工程是指光学工程.
背景情况:
- 酸 (LN) 光学波导技术对于光子集成电路至关重要.
- (Ti) 扩散的LN波导是电光 (EO) 设备的基础.
- 极化转换可以提高光学传输的效率和容量.
研究的目的:
- 为了呈现一个电光 (EO) 极化模式转换器.
- 在宽带波长应用中使用PANDA偏振维护光纤 (PMF).
- 为了实现波长可调性和多波长调制.
主要方法:
- 制造Ti-扩散的LN波导.
- 使用PANDA PMF进行宽带运行 (1440-1620 nm) 的包装.
- TE到TM模式转换效率和频率响应的表征.
主要成果:
- 通过应用电压实现了高效的TE到TM模式的转换.
- 在1440-1620 nm的宽带运行,具有波长可调性.
- 高频响应 (~600 MHz) 和插入损失低于5dB.
结论:
- 开发的EO极化模式转换器在光通信中表现出高性能.
- 基于LN的偏振装置对芯片集成的偏振电信系统具有前景.
- 该设备提供高效的模式转换和宽带调整能力.
相关概念视频
01:05Total Internal Reflection Fluorescence Microscopy
Total internal reflection fluorescence microscopy or TIRF is an advanced microscopic technique used to visualize fluorophores in samples close to a solid surface with a higher refractive index, such as a glass coverslip. TIRF only allows fluorophores in proximity to the solid surface to be excited. When light from a medium with a lower refractive index (such as air) hits the glass coverslip at a critical angle, the light undergoes total internal reflection stead of passing through the glass.
01:15Transmission Electron Microscopy
In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400 keV in...