Title :
Highly stable fiber Bragg gratings written in hydrogen-loaded fiber
Author :
Guan, Bai-Ou ; Tam, Hwa-Yaw ; Tao, Xiao-Ming ; Dong, Xiao-Yi
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech., Kowloon, China
Abstract :
We demonstrated that the thermal stability of fiber Bragg gratings written in hydrogen-loaded standard fibers can be significantly enhanced by preirradiating the fiber with UV beam before writing gratings. Our experimental result shows that these gratings maintained more than 60% of their initial index modulation after 10 hours at 605/spl deg/C.
Keywords :
Bragg gratings; hydrogen; optical fibre fabrication; optical fibre testing; stability; thermal stability; 10 h; 605 C; H-loaded fiber; UV beam; highly stable fiber Bragg grating writing; hydrogen-loaded fiber; initial index modulation; preirradiating; Annealing; Bragg gratings; Fiber gratings; Hydrogen; Optical fiber sensors; Reflectivity; Telecommunication standards; Temperature sensors; Thermal stability; Writing;
Journal_Title :
Photonics Technology Letters, IEEE
