V2EX optical delay

Optical Delay

定义 Definition

optical delay:光学延迟;指光信号在传播或经过器件(如光纤、波导、延迟线、谐振腔)时产生的时间延后,常用于同步、测量、缓冲、干涉与相位控制等场景。(在通信与测量中也常与“群时延/Group Delay”等概念相关;此处为最常见的一般意义。)

发音 Pronunciation (IPA)

/ptkl dle/

例句 Examples

The optical delay is 10 nanoseconds.
光学延迟为10纳秒。

By adding an optical delay line, the system can align two pulses in time and reduce timing jitter in the measurement.
通过加入光学延迟线,系统可以在时间上对齐两束脉冲,并降低测量中的定时抖动。

词源 Etymology

optical 源自希腊语 optikos(“与视觉/光有关的”),经拉丁语与法语进入英语;delay 来自古法语 delayer(“拖延、延缓”)。合在一起,字面意思就是“让光的到达时间变晚的延缓”。

相关词 Related Words

文学与著作例证 Works

  • Principles of Optics(Born & Wolf):在干涉与相位/传播时间相关讨论中常涉及“optical delay(光学延迟)”概念。
  • Fiber-Optic Communication Systems(Govind P. Agrawal):讨论光纤传输与色散、时延/群时延时会出现相关术语。
  • Optical Electronics in Modern Communications(A. Yariv):在光电子与光信号处理、延迟线与同步等主题中使用该表达或同类表述。
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