V2EX dispersion-shifted fiber

Dispersion-Shifted Fiber

定义 Definition

dispersion-shifted fiber:色散位移光纤(简称 DSF)。一种单模光纤,通过设计纤芯折射率分布,把零色散波长从约 1310 nm “移到”接近 1550 nm(低损耗窗口)附近,以在该波段降低色散、提升传输性能。(在实际系统中也需注意非线性效应等问题。)

发音 Pronunciation (IPA)

/dsprn ftd fabr/

例句 Examples

The network uses dispersion-shifted fiber for long-distance links.
该网络的长距离链路使用色散位移光纤。

Although dispersion-shifted fiber reduces chromatic dispersion near 1550 nm, it can increase nonlinear effects in dense WDM systems.
虽然色散位移光纤能降低 1550 nm 附近的色度色散,但在密集波分复用系统中可能会增强非线性效应。

词源 Etymology

该术语由三部分构成:dispersion(色散) + shifted(被移位的) + fiber(光纤)。意思是“把(零)色散位置通过设计移到某个目标波段的光纤”。这一命名反映了光纤通信发展中,为兼顾低损耗低色散而进行的工程优化思路。

相关词 Related Words

文学与典籍 Literary Works

  • Optical Fiber Communications(Gerd Keiser)
  • Fiber-Optic Communication Systems(Govind P. Agrawal)
  • Nonlinear Fiber Optics(Govind P. Agrawal)
  • ITU-T 建议书 G.653: Characteristics of a dispersion-shifted single-mode optical fibre and cable(国际电联标准文献)
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