V2EX optical attenuator

Optical Attenuator

释义 Definition

光学衰减器:一种用于降低光信号功率/强度的光学器件,常见于光纤通信、光学测试与实验室系统中,用来防止接收端过载、匹配链路预算或模拟传输损耗。常见类型包括固定衰减器可变衰减器(VOA)。(在不同语境下也可指自由空间光路中的衰减装置。)

发音 Pronunciation (IPA)

/ptkl tnjuetr/

例句 Examples

An optical attenuator reduces the power of a laser beam.
光学衰减器会降低激光束的功率。

To prevent the receiver from saturating, the technician inserted an optical attenuator into the fiber link and verified the new power level with a meter.
为防止接收端饱和,技术人员在光纤链路中加入了一个光学衰减器,并用功率计确认新的功率水平。

词源 Etymology

optical 来自拉丁语 opticus(“视觉的、光学的”),与 “眼睛/看” 的词根相关;attenuator 源自拉丁语 attenuare(“使变薄、使减弱”),由 *ad-*(“使……”)+ tenuis(“细、薄、弱”)构成。合起来字面意思就是“使光减弱的装置”。

相关词 Related Words

文献与作品 Literary / Notable Works

  • Fiber-Optic Communication Systems(G. P. Agrawal)
  • Optical Fiber Communications(Gerd Keiser)
  • Handbook of Optical Components and Engineering(常见光学器件参考手册类著作中频繁出现该术语)
  • IEC / ITU-T 光纤通信测试与测量相关标准与应用指南(在测试场景中常提到光学衰减器的使用)
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