Opt Lett. 2013 Oct 1;38(19):3850-3. doi: 10.1364/OL.38.003850.
Efficient inscription of Fiber Bragg gratings (FBGs) in single-mode, thin cladding As(2)S(3) fibers is demonstrated by using near bandgap light at 532 nm. The FBGs with the reflectivity of over 80% can be induced in only 80-90 s, substantially faster than in previous reports. The dynamics of the grating growth are investigated in the photosensitivity process, showing a fast blue shift of the Bragg wavelength and then a somewhat slower red shift. The aging of the grating after fabrication is also reported, indicating a 37% decay of the grating strength.
通过使用近带隙光在 532nm 处对单模、薄包层 As(2)S(3)光纤进行高效写入，实现了光纤布拉格光栅（FBG）的高效写入。仅需 80-90 秒即可诱导出反射率超过 80%的 FBG，这比以前的报道快得多。在光致灵敏度过程中研究了光栅生长的动力学，显示布拉格波长的快速蓝移，然后是稍慢的红移。还报告了制造后光栅的老化情况，表明光栅强度下降了 37%。
