Acta Optica Sinica, Volume. 36, Issue 3, 306001(2016)
Study of Fiber Bragg Grating Regeneration Process and Regeneration Model
Fiber Bragg gratings (FBGs) are inscribed in both H2-loaded and H2-free fiber using 800 nm femtosecond laser, 244 nm Ar+ laser and a phase mask. The regeneration of three kinds of FBGs is observed in different processing temperatures. The models of regeneration process as well as regeneration temperature versus time are established. The FBGs regeneration temperature thresholds are defined. Experimental results and model analysis show that the regeneration temperature thresholds of femtosecond FBG written in H2-free fiber, femtosecond FBG written in H2- free fiber and ultraviolet (UV) FBG in H2- loaded fiber are around 888 ℃ , 780 ℃ and 770 ℃ , respectively. The regenerated FBGs in H2-loaded fiber decay in case of high temperature, while regenerated femtosecond FBG in H2-free fiber has well temperature stability.
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Wang Qiaoni, Yang Yuanhong, He Jun, Wang Yiping. Study of Fiber Bragg Grating Regeneration Process and Regeneration Model[J]. Acta Optica Sinica, 2016, 36(3): 306001
Category: Fiber Optics and Optical Communications
Received: Sep. 2, 2015
Accepted: --
Published Online: Mar. 3, 2016
The Author Email: Qiaoni Wang (sy1317123@buaa.edu.cn)