کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1536849 | 996575 | 2012 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Fabry–Pérot cavities based on chemical etching for high temperature and strain measurement Fabry–Pérot cavities based on chemical etching for high temperature and strain measurement](/preview/png/1536849.png)
In this paper, two hybrid multimode/single mode fiber Fabry–Pérot (FP) cavities were compared. The cavities fabricated by chemical etching are presented as high temperature and strain sensors. In order to produce this FP cavity a single mode fiber was spliced to a graded index multimode fiber with 62.5 μm core diameter. The Fabry–Pérot cavities were tested as a high temperature sensor in the range between room temperature and 700 °C and as strain sensors. A reversible shift of the interferometric peaks with temperature allowed to estimate a sensitivity of 0.75 ± 0.03 pm/°C and 0.98 ± 0.04 pm/°C for the sensor A and B respectively. For strain measurement sensor A demonstrated a sensitivity of 1.85 ± 0.07 pm/μƐ and sensor B showed a sensitivity of 3.14 ± 0.05 pm/μƐ. The sensors demonstrated the feasibility of low cost fiber optic sensors for high temperature and strain.
Journal: Optics Communications - Volume 285, Issue 6, 15 March 2012, Pages 1159–1162