CAJ | 학술논문

结合理论分析和实验验证,探讨了聚焦法测量塑料光纤纤芯的折射率分布的可行性.结果表明,对GI-POF而言,聚焦法是一种简单可行的技术.但是对SI-POF,由于入射光线在光纤边界处发生交叉,聚焦法不能精确测量其折射率分布.
결합이론분석화실험험증,탐토료취초법측량소료광섬섬심적절사솔분포적가행성.결과표명,대GI-POF이언,취초법시일충간단가행적기술.단시대SI-POF,유우입사광선재광섬변계처발생교차,취초법불능정학측량기절사솔분포.
The possibility of applying the focusing method to measure the refractive index profile of polymer optical fibers is studied through combination of the theoretical analysis and experimental verification. The result shows that the focusing method is an easy and feasible way to determine the refractive index of graded-index POFs; however, as the light rays cross each other near the POF boundary, the focusing method is not an appropriate way to decide accurately the refractive index profile of step-index POFs.