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Multiplexing of PVA-coated multimode-fiber taper humidity sensors
- Source :
- Optics Communications. 308:11-14
- Publication Year :
- 2013
- Publisher :
- Elsevier BV, 2013.
-
Abstract
- A simple multiplexing method for relative humidity (RH) sensors based on multimode-fiber tapers (MFTs) is proposed and demonstrated. By cascading a polyvinyl alcohol (PVA) coated MFT with every channel of an Arrayed-Waveguide Grating (AWG), multipoint RH measurement is achieved. Experimental results show that the proposed multipoint RH sensor system works well. The output power for every sensor head is almost linearly increased with the RH, and the average sensitivity of the proposed sensor is about 0.23 nW/%RH within the measurement range of 35%RH–90%RH with the taper waist diameter of ∼22 μm.
- Subjects :
- Multi-mode optical fiber
Materials science
business.industry
Humidity
Grating
Multiplexing
Polyvinyl alcohol
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Arrayed waveguide grating
law.invention
chemistry.chemical_compound
Optics
chemistry
law
Relative humidity
Electrical and Electronic Engineering
Physical and Theoretical Chemistry
business
Sensitivity (electronics)
Subjects
Details
- ISSN :
- 00304018
- Volume :
- 308
- Database :
- OpenAIRE
- Journal :
- Optics Communications
- Accession number :
- edsair.doi...........53bddd056dbb36c73e4c2e51eb7108d8