摘要
从匹配型熊猫光纤的结构及相衬显微技术物理图像出发 ,建立起仿真数学模型 ,计算机仿真了相衬法定轴技术。仿真数学模型考虑了匹配型熊猫光纤的应力折射率分布、相衬成像原理、光纤在物镜观察面上的相衬成像偏差等物理图像。计算机仿真分析得到了相衬法确定匹配型保偏光纤双折射光轴的光强特征图像。仿真结果与实验得到的光强图像相符合。此方法已成功地应用于定轴实验 ,定轴分辨率小于
In this paper, the simulated mathematical models of the panda fiber of matching refractive-index (MRI) were given through the structure of the fiber and the physics principles of phase contrast. Computer simulation of phase contrast alignment of birefringent axes (BA) in the panda fiber was done. Simulated mathematical models include several physics principles, e.g., distribution of stress-induced refractive index in the panda fiber of MRI, phase contrast, and image error of optical fiber around the observation plane of the objective lens. Computer simulation gave the optical intensity distinguishing profile in phase contrast to align BA in the panda fiber of MRI. The simulated profiles fit well with experimental ones. The technique has been used in experiments and the resolving power was less than two degrees.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1998年第8期715-721,共7页
Chinese Journal of Lasers
关键词
相衬法
定轴
仿真
特征图像
保偏光纤
phase contrast, panda fiber, alignment of birefringent axes, simulation, distinguishing profile
