V2EX polarization-maintaining fiber

Polarization-Maintaining Fiber

释义 Definition

偏振保持光纤(PMF):一种特殊光纤,能在传输过程中尽量保持入射光的偏振态(不易被随机扰动“搅乱”)。它通常通过在光纤内部引入强双折射(例如应力棒结构,如 PandaBow-tie 型)来让两种正交偏振模式“分离”,从而降低偏振串扰。常用于光纤陀螺、干涉仪、相干通信、精密传感、激光耦合等场景。

例句 Examples

We used polarization-maintaining fiber to connect the laser to the sensor.
我们用偏振保持光纤把激光器连接到传感器。

In the interferometer, polarization-maintaining fiber helps preserve the input polarization, reducing drift and improving measurement stability.
在干涉仪中,偏振保持光纤有助于保持输入偏振,减少漂移并提高测量稳定性。

发音 Pronunciation (IPA)

/polrzen menten fabr/

词源 Etymology

该术语由三部分构成:polarization(偏振)+ maintaining(保持的)+ fiber(光纤)。其中 polarization 源自 polarize(使极化/使偏振),与“极(pole)”的概念相关,强调方向性;maintaining 表示“维持不变”;组合后直观表达“能维持偏振状态的光纤”。这是光通信与光学工程领域的技术复合词。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Fiber-Optic Communication Systems(Govind P. Agrawal)讨论偏振相关效应与工程实现中对PMF的使用情境。
  • Optical Fiber Communications(Gerd Keiser)在光纤类型与系统设计章节中涉及偏振保持光纤及其应用。
  • Handbook of Optical Fibers(多作者编)作为光纤结构与特性条目,常出现“polarization-maintaining fiber/PM fiber”的专门说明。
  • Optical Fiber Sensor Technology(多卷本,相关编著)在干涉型与偏振相关传感方案中频繁提及PMF以提升稳定性与重复性。
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