Effect of coupling effectiveness on fiber optical probe - art no 672350
- 物理技术－会议论文 
A fiber optical probe which is a non-contact,type and highly accurate, and small sized is designed in this paper to detect some holes which are only several millimeters and must be under monitor. Based on Gauss transferring theory, the mode matching principle and matrix optical theory, the effect of the structure of the optical fiber and lens connection is studied. Then the confocal speciality between optical fiber and GRIN lens is also studied based on a fiber optical confocal scanning microscopy (FOCSM). The coupling structure which can get maximal coupling efficiency is designed. Results of preliminary experiments are presented finally.