Multi-hole plastic optical fiber force sensor based on femtosecond laser micromachining  

作　　者：汤国玉 韦珏 周微 范瑞琴 吴明宇 徐晓峰 

机构地区：[1]College of Physics, Jilin University

出　　处：《Chinese Optics Letters》2014年第9期19-23,共5页中国光学快报（英文版）

基　　金：supported by the National Basic Research Program of China(No.2011CB921603);the National Natural Science Foundation of China(No.11074097)

摘　　要：We study the theoretical and experimental effects of hole quantity and inter inter-hole spacing on insertion loss for using femtosecond laser to make bend-sensitive multi-hole plastic optical fiber （POF）, and also analyze the mechanism of bending loss in multi-hole POF. A force sensor based on bending loss of the multi-hole POF is fabricated. The measurement ranges from 0 to 65 N, and the maximum output change exceeds 15.51 dB with good linearity and repeatability, and the sensitivity is 0.24 dB/N.We study the theoretical and experimental effects of hole quantity and inter inter-hole spacing on insertion loss for using femtosecond laser to make bend-sensitive multi-hole plastic optical fiber （POF）, and also analyze the mechanism of bending loss in multi-hole POF. A force sensor based on bending loss of the multi-hole POF is fabricated. The measurement ranges from 0 to 65 N, and the maximum output change exceeds 15.51 dB with good linearity and repeatability, and the sensitivity is 0.24 dB/N.

关 键 词：Fiber optic sensors Optical fiber fabrication Ultrashort pulses 

分 类 号：O437[机械工程—光学工程] TP212[理学—光学]