Ultrashort Long-Period Fiber Gratings Inscribed on a Single-Mode Fiber for Torsion Sensing Applications

<div>Micrograph showing the tapering effect (arrows) on the irradiated zones in a LPFG with 600 <i>μ</i>m period written on an SMF-28 optical fiber. 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Journal of Sensors

fig1

Figure 1

Figure 1: Ultrashort Long-Period Fiber Gratings Inscribed on a Single-Mode Fiber for Torsion Sensing Applications 