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28 June 2013 Fabrication and sensing characteristics of tilted long-period fiber gratings
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Abstract
We demonstrated experimentally the fabrication of tilted long-period fiber gratings (TLPFGs) with by CO2 laser. The writing efficiency can be dramatically improved by increasing the tilt angle. We fabricated the non-titled long-period fiber gratings with equivalent grating period in the same fiber. The experimental results show that the transmission spectra of non-titled equivalent LPFGs are similar with that of the TLPFGs. The TLPFG is found to have higher refractive index sensitivity than the corresponding equivalent LPFG.
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Rui Wu, Yunqi Liu, Na Chen, Fufei Pang, and Tingyun Wang "Fabrication and sensing characteristics of tilted long-period fiber gratings", Proc. SPIE 8561, Advanced Sensor Systems and Applications V, 85610G (28 June 2013); https://doi.org/10.1117/12.999962
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