V2EX fiber bragg grating

Fiber Bragg Grating

释义 Definition

光纤布拉格光栅(FBG):一种在光纤芯内形成的周期性折射率微结构(“光栅”)。它会对特定波长的光产生强反射(称为布拉格波长),而让其他波长大多透过。常用于光纤传感(测量应变、温度、压力等)和光通信(滤波、波长选择、色散补偿等)。

发音 Pronunciation (IPA)

/fabr br ret/

例句 Examples

The fiber Bragg grating reflects a specific wavelength of light.
光纤布拉格光栅会反射某一个特定波长的光。

By monitoring the shift in the Bragg wavelength, engineers can use a fiber Bragg grating to measure strain and temperature along a structure in real time.
通过监测布拉格波长的漂移,工程师可以利用光纤布拉格光栅实时测量结构的应变与温度变化。

词源 Etymology

该术语由三部分组成:fiber(光纤)+ Bragg(布拉格,源自布拉格父子提出的布拉格衍射/布拉格条件)+ grating(光栅,指周期性结构)。其核心思想是:在光纤内写入周期结构,使其满足“布拉格条件”,从而选择性反射某一波长。

相关词 Related Words

文献与作品 Literary Works

  • Optical Fiber Communications(Gerd Keiser)
  • Fiber-Optic Communication Systems(Govind P. Agrawal)
  • Handbook of Optical Fibre Sensing Technology(多作者编著)
  • Optical Fiber Sensor Technology(系列丛书,多卷本)
  • 经典研究论文:Meltz, Morey & Glenn(1989)关于横向全息法写入光纤布拉格光栅的工作中广泛使用该术语
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