28 September 2015 Fiber Bragg grating inscriptions in multimode fiber using 800 nm femtosecond laser
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 963463 (2015) https://doi.org/10.1117/12.2193770
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
A short fiber Bragg grating (FBG) was successfully written in a multimode fiber (MMF) tube with core and cladding diameters of 105 μm and 125 μm using 800 nm femtosecond laser. A side-illumination technique was utilized to ensure the grating inscriptions regain over the core of MMF. Both fundamental mode and high-order modes of MMF are coupled at the core-mismatch junction and appear as two well-defined resonances in transmission. Femtosecond laserwritten three FBG-types present good thermostability up to 900 °C.
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Qiangzhou Rong, Qiangzhou Rong, Xueguang Qiao, Xueguang Qiao, } "Fiber Bragg grating inscriptions in multimode fiber using 800 nm femtosecond laser", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963463 (28 September 2015); doi: 10.1117/12.2193770; https://doi.org/10.1117/12.2193770
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