30 January 2012 CO2-laser induced long-period fiber gratings in nano-engineered bend insensitive single-mode fiber
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Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 83511H (2012) https://doi.org/10.1117/12.915965
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia
Abstract
Long-period fiber gratings (LPFGs) written in nano-engineered bend insensitive single-mode fiber (NEBI-SMF) were reported. It is found that, only when the pitches of the gratings are in two wavelength ranges (270-305 μm and 420-480 μm), obvious resonance peaks can be obtained within the band of 1200-1650 nm, due to the cladding mode separation caused by the nano-engineered ring in the fiber cladding. The strain sensitivity of the LPFG with a pitch of 295 μm in the range of 270-305 μm is 2.8 pm/με, while the LPFG with a pitch of 470 μm in the range of 420-480 μm is insensitive to strain. The temperature sensitivities of the two LPFGs are 0.145 nm/oC and 0.098 nm/oC, respectively. Due to the special structure of the NEBI-SMF, more interesting phenomenon could be explored by carrying out further theoretical and experimental study of these novel LPFGs, such as the bending and twisting characteristics, etc.
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Yunjiang Rao, Yunjiang Rao, Wenhua Wang, Wenhua Wang, Zinan Wang, Zinan Wang, Kin Seng Chiang, Kin Seng Chiang, Yuan Gong, Yuan Gong, } "CO2-laser induced long-period fiber gratings in nano-engineered bend insensitive single-mode fiber", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 83511H (30 January 2012); doi: 10.1117/12.915965; https://doi.org/10.1117/12.915965
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