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The temperature dependence of a macrobending bare fiber based edge filter is investigated both theoretically and experimentally. The fiber used is a high bend loss fiber, type 1060XP. The experimental results show a good agreement with the proposed theoretical model over a temperature range from 0 to 80oC. It is shown that the strong temperature dependence of a high-bend loss fiber has a significant influence on the performance of a fiber edge filter used in a wavelength measurement application. However it is also concluded that such a temperature dependent performance can be beneficially utilized in a fiber temperature sensing application.
Wang, P., Rajan, G., Semenova, Y., Farrell, G. (2008) Temperature dependence of a macrobending edge filter based on a high-bend loss fiber. Optics Letters, Vol. 33, No. 21, pp. 2470-2472, 2008. doi:10.1364/OL.33.002470