期刊
APPLIED OPTICS
卷 55, 期 7, 页码 1525-1529出版社
OPTICAL SOC AMER
DOI: 10.1364/AO.55.001525
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资金
- National Natural Science Foundation of China (NSFC) [61425007, 61575128, 61308027, 61377090]
- Guangdong Provincial Science and Technology Department [2014A030308007, 2014B050504010, 2015B010105007, 2015A030313541, 2014A030312008]
- Science and Technology Innovation Commission of Shenzhen [ZDSYS20140430164957664, KQCX20140512172532195, GJHZ20150313093755757]
- Pearl River Scholar Fellowships
The fabrication of fiber Bragg gratings was here demonstrated using ultrashort pulse laser point-by-point inscription. This is a very convenient means of creating fiber Bragg gratings with different grating periods and works by changing the translation speed of the fiber. The laser energy was first optimized in order to improve the spectral properties of the fiber gratings. Then, fiber Bragg gratings were formed into D-shaped fibers for use as refractive index sensors. A nonlinear relationship was observed between the Bragg wavelength and liquid refractive index, and a sensitivity of similar to 30 nm/RIU was observed at 1.450. This shows that D-shaped fiber Bragg gratings might be used to develop promising biochemical sensors. (C) 2016 Optical Society of America
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