Abstract
One of the mechanisms of optical fiber sensing is to convert the fiber strains caused by external parameters into changes of the phase of the light traveling inside the optical fiber. Hence, interferometric measuring systems should be employed to detect phase changes with high sensitivity. Conventional interferometers require two interacting waves with identical polarization state to ensure highly fringes visibility. Such a requirement is easily achievable when, for instance, the sensitive arm of the interferometer is a single mode fiber. However, in some practical cases using a multimode optical fiber (MMF) is much more convenient than using a single mode fiber.
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Varyshchuk, V., Bobitski, Y. (2015). Correlation Processing of Speckle Pattern in Multimode Polymer Optical Fiber for Deformation Monitoring in Nanometer Range. In: Fesenko, O., Yatsenko, L. (eds) Nanoplasmonics, Nano-Optics, Nanocomposites, and Surface Studies. Springer Proceedings in Physics, vol 167. Springer, Cham. https://doi.org/10.1007/978-3-319-18543-9_23
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DOI: https://doi.org/10.1007/978-3-319-18543-9_23
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