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17 October 2012Development of micro-tapered long-period fiber gratings written in tapered fibers with different diameters for enhancement of strain sensitivity
Micro-tapered long-period fiber gratings (MT-LPFGs) written in tapered fibers with different diameters of 125, 100, 75,
and 50 μm are fabricated and their transmission characteristics with variations in strain and temperature are investigated.
Since the variation of the refractive index with the applied strain change is inversely proportional to the cross section
area of the MT-LPFGs, the strain sensitivity of the MT-LPFGs is further improved. The temperature sensitivity is also
enhanced by reducing the diameter of the tapered fiber. The experimental results are very useful for discrimination of
strain and temperature sensitivities.
Min-Seok Yoon,Sung-Jae Kim,Hyun-Joo Kim, andYoung-Guen Han
"Development of micro-tapered long-period fiber gratings written in tapered fibers with different diameters for enhancement of strain sensitivity", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84213S (17 October 2012); https://doi.org/10.1117/12.966376
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Min-Seok Yoon, Sung-Jae Kim, Hyun-Joo Kim, Young-Guen Han, "Development of micro-tapered long-period fiber gratings written in tapered fibers with different diameters for enhancement of strain sensitivity," Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84213S (17 October 2012); https://doi.org/10.1117/12.966376