具有周期性增益和折射率波纹的光纤放大器。

Optical fiber amplifier with periodic gain and refractive-index corrugations.

作者信息

Sato H, Azumai Y

出版信息

Appl Opt. 1992 Sep 20;31(27):5822-9. doi: 10.1364/AO.31.005822.

DOI:10.1364/AO.31.005822

PMID:20733773

Abstract

An optical fiber amplifier is proposed in which both the gain and refractive index are corrugated in the shape of a periodic square function along a longitudinal direction. Amplifying characteristics are numerically investigated for both continuous and pulsed waves as a typical example of a multimode optical fiber. As a result, choosing both corrugation periods close to the Bragg reflection condition and the fiber length leads to a unique amplifier that has various features such as high gain, frequency selectivity, and rejection of mode dispersion.

摘要

提出了一种光纤放大器，其中增益和折射率沿纵向呈周期性方波函数形状起伏变化。作为多模光纤的一个典型例子，对连续波和脉冲波的放大特性进行了数值研究。结果表明，选择接近布拉格反射条件的起伏周期和光纤长度，会得到一种具有高增益、频率选择性和抑制模式色散等多种特性的独特放大器。