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Thermal characteristics of Fabry-Perot cavity based on regenerated fiber Bragg gratings

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摘要

The Letter reports the thermal stability and strain response of Fabry-Perot (FP) cavity under different high temperatures. The FP cavity was made by thermal regeneration of two identical cascaded fiber Bragg gratings (FBGs). It is demonstrated that the FP cavity is capable of measuring temperature from 300 °C to 900 °C, with a temperature sensitivity of 15.97 pm/°C. The elongation of fiber was observed through the drifted Bragg wavelength at 700 °C or above when weight was loaded. The elongation was further inferred by the slight change in interference spectra of FP cavity at 900 °C.

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作者单位:

    Beijing Information Science and Technology University
    Beijing Information Science and Technology University

引用该论文

Zhang Yumin,Ren Yue,Dong Mingli,Meng Fanyong,zhu lianqing. Thermal characteristics of Fabry-Perot cavity based on regenerated fiber Bragg gratings[J].Chinese Optics Letters,2018,16(12):12.