Langevin Equation Approach to Mode Coupling in Heated Step-Index Plastic Optical Fibers

被引：1
|
作者：
Savovic, Svetislav [1 ,2 ]
Djordjevich, Alexandar [2 ]
机构：
[1] Univ Kragujevac, Fac Sci, R Domanovica 12, Kragujevac 34000, Serbia
[2] City Univ Hong Kong, Tat Chee Ave 83, Hong Kong, Peoples R China
来源：
JOURNAL OF RUSSIAN LASER RESEARCH | 2021年 / 42卷 / 02期
关键词：
plastic optical fiber; mode coupling; Langevin equation; stochastic differential equations;
D O I：
10.1007/s10946-021-09944-7
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The Langevin equation is used to investigate the state of mode coupling in step-index plastic optical fibers under varied temperature. The numerical integration of the Langevin equation is based on the computer-simulated Langevin force. The solution matches the experimental data reported previously. We find that elevated temperatures of plastic optical fibers are strengthening mode coupling. We show that, solving the Langevin equation (stochastic differential equation), one can treat a mode coupling in heated multimode step-index plastic optical fibers, which is a result of fiber's intrinsic random perturbations.
引用
收藏
页码：154 / 160
页数：7
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