报导一种光耦合方案,它采用光纤端面透镜实现塑料光纤与光源和检测器之间的高效耦合。填入光纤凹形端面的透明树脂靠表面张力形成双凸透镜,并相对于纤芯自动定位。简单的光线矩阵分析表明,与光纤平面端面相比,透镜形端面耦合角大,允许大范围的工作距离。已成功演示这种透镜端面光纤在输入和输出的实验检测。 Reported an optical coupling solution that uses a fiber end facet lens to achieve efficient coupling between a plastic optical fiber and a light source and detector. The transparent resin filled in the concave end face of the optical fiber forms a lenticular lens by the surface tension and is automatically positioned with respect to the core. Simple ray-matrix analysis shows that the lens-shaped end face has a large coupling angle compared to the planar face of the fiber, allowing a wide range of working distances. The experimental testing of input and output of this lens facet fiber has been successfully demonstrated.