Thermally Stable Type II FBGs Written Through Polyimide Coatings of Silica-Based Optical Fiber

被引:15
作者
Grobnic, Dan [1 ]
Hnatovsky, Cyril [1 ]
Mihailov, Stephen J. [1 ]
机构
[1] CNR, Ottawa, ON K1A 0R6, Canada
关键词
Ultrafast optics; fiber Bragg gratings; polyimide; FEMTOSECOND IR RADIATION; BRAGG GRATINGS; PHASE MASK; LASER; INSCRIPTION;
D O I
10.1109/LPT.2017.2752128
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Type II-IR fiber Bragg gratings (FBGs) were written directly through the protective polyimide coatings of off-the-shelf pure silica core and standard telecom Ge-doped silica core single mode fibers using ultrafast IR radiation and the phase mask FBG writing method. Using a short focal length acylindrical lens and nonlinear photoluminescent imaging, type II grating structures could be created when Fourier transform limited pulses were chirped to 500 fs. The resulting gratings in the Ge-doped fibers were thermally stable up to 1000 degrees C and could be used directly as fabricated without annealing to stabilize the structure.
引用
收藏
页码:1780 / 1783
页数:4
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