Fiber Bragg grating inscriptions in multimode fiber using 800 nm femtosecond laser

Qiangzhou Rong; Xueguang Qiao

doi:10.1117/12.2193770

28 September 2015 Fiber Bragg grating inscriptions in multimode fiber using 800 nm femtosecond laser

Qiangzhou Rong, Xueguang Qiao

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.

Citation Download Citation

Qiangzhou Rong and 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); https://doi.org/10.1117/12.2193770

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