A novel fiber optical sensor based on in-line fiber Mach-Zehnder interferometer for simultaneous measurement of strain and temperature is proposed and demonstrated experimentally. The interferometer is simple, extremely robust and highly sensitive and consists of two concatenated parts; one is a down-tapered fiber (DTF) and the other is an up-tapered fiber (UTF). UTF and DTF sections of the sensor are fabricated by using a commercial fiber splicer and a non-commercial setup based on heating and stretching a portion of a standard single-mode fiber, respectively. While UTF section behaves as a beam splitter to decompose the injected light into core and cladding modes, DTF section provides evanescent field to access the surrounding environment. Experimental results indicate that the resolutions of 0.83 °C and 45.80 micro-epsilon were achieved in temperature and strain, respectively, for simultaneous measurement with a 10 pm of wavelength resolution.
up-tapered fiber down-tapered fibers simultaneous measurement strain
Birincil Dil | İngilizce |
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Konular | Mühendislik |
Bölüm | Research Article |
Yazarlar | |
Yayımlanma Tarihi | 31 Aralık 2020 |
Gönderilme Tarihi | 31 Mayıs 2020 |
Kabul Tarihi | 9 Ekim 2020 |
Yayımlandığı Sayı | Yıl 2020 Cilt: 62 Sayı: 2 |
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering
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