Highly Sensitive Temperature Sensing Performance of a Microfiber Fabry-Perot Interferometer with Sealed Micro-Spherical Reflector
| Autor: | Juntong Yang, Jin Li, Jinna Ma |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.product_category Reflector (antenna) 02 engineering and technology Interference (wave propagation) temperature sensors 01 natural sciences Article 010309 optics microfiber 0103 physical sciences Microfiber Fiber Electrical and Electronic Engineering fiber sensors business.industry Mechanical Engineering Resonance 021001 nanoscience & nanotechnology Interferometry Wavelength integrated optics Control and Systems Engineering Optoelectronics 0210 nano-technology business Fabry–Pérot interferometer |
| Zdroj: | Micromachines Volume 10 Issue 11 |
| ISSN: | 2072-666X |
| DOI: | 10.3390/mi10110773 |
| Popis: | A temperature probe has been proposed by inserting a microfiber taper into a silica hollow core fiber with a microsphere end. The sealed air cavity in the microsphere and the inserted microfiber acted as the two reflectors of a Fabry-Perot interferometer, respectively. The contribution of both microfiber diameter and cavity length on the interference spectra was analyzed and discussed in detail. The temperature change was experimentally determined by monitoring the wavelength location of the special resonance dip. By filling the air cavity with poly-dimethylsiloxane (PDMS), a high temperature sensitivity of 3.90 nm/° C was experimentally demonstrated. This temperature probe with the diameter of 150 &mu m and length of 10 mm will be a promising candidate for exploring the miniature or implantable sensors. |
| Databáze: | OpenAIRE |
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