Abstract
We proposed two schemes of generating and localizing dynamic gratings in optical fibers: one is based on the gain saturation in erbium-doped fiber; the other is based on Brillouin scattering in the fiber. By using these dynamic gratings, fully distributed strain/temperature sensors have been demonstrated. In this presentation, we review the principles, basic schemes, and experimental demonstrations of the novel dynamic grating techniques.
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He, Z., Hotate, K. Dynamic gratings in optical fibers: Synthesis and sensing applications. Photonic Sens 2, 60–64 (2012). https://doi.org/10.1007/s13320-010-0008-x
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DOI: https://doi.org/10.1007/s13320-010-0008-x