Sensor Applications Based on the Cutoff Properties of Liquid-Filled Ge-Doped Microstructured Fibers
| Autor: | Antonio Diez, Miguel V. Andrés, S. Torres-Peiró, Jose L. Cruz |
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| Rok vydání: | 2010 |
| Předmět: |
Materials science
Laser diode business.industry Physics::Optics Microstructured optical fiber Laser Cutoff frequency law.invention Core (optical fiber) Optics Fiber Bragg grating law Fiber optic sensor Optoelectronics Electrical and Electronic Engineering business Instrumentation Photonic-crystal fiber |
| Zdroj: | IEEE Sensors Journal. 10:1174-1179 |
| ISSN: | 1558-1748 1530-437X |
| DOI: | 10.1109/jsen.2010.2046031 |
| Popis: | The cutoff properties of the fundamental mode of liquid filled Ge-doped microstructured fiber can be exploited in a novel set of wavelength encoded sensor applications. A number of temperature, strain and vibration sensors have been implemented using a Ge-doped core Y-shaped microstructured fiber. The temperature sensitivity of the cutoff wavelength is 25 nm/°C, more than two orders of magnitude higher than the values reported for fiber Bragg gratings. Similarly, the strain sensitivity is 16.8 pm/μ∈, about one order of magnitude higher than a fiber Bragg grating. Amplitude interrogation of the sensor heads can be implemented in rather easy configurations using a light emitting diode or a laser diode, without requiring an accurate selection of the laser wavelength. This permits, for example, the development of vibration sensors with fast time response, at least better than 0.1 ms. |
| Databáze: | OpenAIRE |
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