30 November 2012 Research on fiber Bragg grating based on micro-fiber
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Abstract
Fiber Bragg grating sensors have been attracted more attention due to its excellent advantages, such as small size, light weight, low cost, immunity to electromagnetic interference, multiplexing and so on, which offer a widely application in optical sensing and communication field. Following the appearance of micro/nano-fiber (MNF), it is imperative to develop the manufactured technology of MNF devices, MNF Bragg gratings are the important passive device among these. In this paper, we simulate the effective refractive index in fiber core using two-layer model. Meanwhile, we present a new method to fabricate a 6μm diameter fiber Bragg grating through successive improvement of manufactured technology. The small cladding diameter fiber was obtained by immersing an optical photosensitive fiber in different concentrations of hydrofluoric acid solutions. Then a MNF is fabricated from the small cladding diameter fiber by drawing. Finally a 6μm-diameter fiber Bragg grating was written using phase mask technology with a higher reflection. The testing results of this grating showed a good agreement with the simulation.
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Nuan Jiang, Zhengtong Wei, Pan Xu, Huayong Yang, Yongming Hu, "Research on fiber Bragg grating based on micro-fiber", Proc. SPIE 8561, Advanced Sensor Systems and Applications V, 85611V (30 November 2012); doi: 10.1117/12.2001243; https://doi.org/10.1117/12.2001243
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