Refractive Index Sensitivity of Tilted Long Period Fibre Gratings Written in Thinned Cladding Fibre

8th International Conference on Advanced Infocomm Technology

Zhao, Yunhe^1 ; Liu, Yunqi^1 ; Guo, Qiang^1 ; Wang, Tingyun^1

Key Lab of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 149 Yanchang Road, Shanghai

200072, China^1

关键词: CO2-laser;    Long-period fibre gratings;    Refractive index sensitivity;    Surrounding refractive indices (SRI);    Tilted angle;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/679/1/012002/pdf
DOI  :  10.1088/1742-6596/679/1/012002

来源: IOP

【 摘 要 】

We demonstrated the fabrication of tilted long period fibre gratings written in the thinned cladding fibre by CO2laser. The refractive index characteristics of the gratings with different tilted angles were investigated experimentally. The experimental results show that the grating with larger tilted angle has higher sensitivity to the surrounding refractive index changes.