Decay Characteristic of Fiber Bragg Grating and Fabrication of High Temperature Resistance Grating Temperature Sensor
Thermal decay characteristic of fiber Bragg Grating (FBG) written into hydrogen-loaded optical fiber by exposing to ultraviolet (UV) laser irradiation through a phase mask is presented and experimentally demonstrated.Results of the experiment show that the FBG has a high temperature sustainability of 600 ℃ with maintaining 26.6% of initial reflected light power after annealing for 24 hours.High temperature resistance grating based on the hydrogen-loaded conventional FBG has been fabrication and the shift of the Bragg wavelength with temperature is investigated over a range from -60 ℃ to 700 ℃.The relationship between the wavelength of the FBG and temperature indicates its feasibility as temperature sensor for high temperature.
thermal decay characteristic FBG sensor high temperature
Li Jieyan Zhang Dongsheng
National Engineering Laboratory for Fiber Optic Sensing Technology Wuhan University of Technology Wuhan, China
国际会议
太原
英文
30-33
2013-01-13（万方平台首次上网日期，不代表论文的发表时间）