期刊
JOURNAL OF LIGHTWAVE TECHNOLOGY
卷 28, 期 10, 页码 1459-1467出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2010.2043414
关键词
Bragg gratings; microstructured fiber; photonic crystal fiber
资金
- EU
- COST 299 action
- IWT SBO
- Methusalem and Hercules Foundation
- Network of Excellence on Micro-Optics NEMO
- Research Foundation Flanders (FWO-Vlaanderen)
- IAP
- GOA
- Statutory Grant
- Institute for the Promotion of Innovation through Science and Technology in Flanders (IWT-Vlaanderen)
We present KrF excimer laser-induced dynamics of Bragg grating growths in GeO2 doped microstructured optical fibers. The studied fibers all have 6 rings of airholes in a hexagonal lattice and a GeO2 doped region in the center of the microstructure. We compare the growth rates of fiber Bragg gratings in the different microstructured fibers with UV grating inscription. The influence of the doping level, the airhole filling factor, the airhole pitch distance and the fiber orientation are investigated. We expand the range of microstructured optical fibers in which Bragg gratings can be inscribed, achieving reflection strengths that are useable for FBG-based sensing applications, even for doped regions with GeO2 concentrations as low as 1.36 mol% and 0.45 mol%.
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