By means of the weakly guiding approximation, the mode spot sizes Wx and Wy of the fundamental mode along the semimajor ......

A new mode pattern's demodulation technique is put forward. Researches of experiment and theory show that the coupling ......

The modular interference characteristics of circular-core and elliptical-core two-mode fibers are investigated in theory......

本文报道了一种新型光纤传感器，其原理为通过测量光纤末端近场模斑谱来反映埋置在周围的树脂折射率的变化。计算了随着在树脂固化过......

光纤的模场分布是光纤最基本的特性，它包含了很多光纤的有关信息，单模光纤都工作在不可见的近红外波长范围内，且在可见光范围并非单模......