V2EX chirped fiber bragg grating

Chirped Fiber Bragg Grating

定义 Definition

啁啾光纤布拉格光栅:一种光纤内的布拉格光栅,其光栅周期(或等效折射率调制周期)沿长度方向逐渐变化(“chirped/啁啾”),因此对不同波长的反射位置不同,可用于色散补偿、脉冲压缩/展宽、宽带反射滤波、传感等。(也常简称 CFBG

发音 Pronunciation (IPA)

/tpt fabr br ret/

例句 Examples

A chirped fiber Bragg grating can compensate dispersion in an optical link.
啁啾光纤布拉格光栅可以补偿光链路中的色散。

By designing the chirp rate, engineers tailor the reflected group delay of a chirped fiber Bragg grating to compress ultrashort pulses while maintaining low insertion loss.
通过设计啁啾速率,工程师可以调控啁啾光纤布拉格光栅的反射群时延,在保持较低插入损耗的同时压缩超短脉冲。

词源 Etymology

  • Bragg 来自物理学中的“布拉格”姓氏(与晶体衍射和“布拉格反射”相关的命名传统),在光中借用该概念指满足布拉格条件的周期性结构产生选择性反射
  • Grating 原意为“光栅/栅格”,在光学里指周期性调制结构
  • Chirped 原指“鸟鸣般的啁啾”(频率随时间变化的声音),在工程与信号处理中引申为频率/周期随位置或时间逐渐变化;在此处即光栅周期沿光纤方向变化。

相关词 Related Words

文献与著作 Literary / Notable Works

  • **Kashyap, Raman. Fiber Bragg Gratings (2nd ed.)**(系统介绍光纤布拉格光栅,包含啁啾光栅的设计与应用)
  • **Agrawal, Govind P. Fiber-Optic Communication Systems**(光纤通信教材中常讨论色散与光栅补偿,涉及啁啾FBG相关内容)
  • Culshaw, Brian; Kersey, Alan. 传感综述论文与教材(Fiber Optic Sensors 方向)(在光纤传感应用中常提及啁啾FBG用于应变/温度分布测量与解调)
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