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Multimode Optical Fiber Surface Plasmon Resonance Signal Processing Based on the Fourier Series Fitting
- Source :
- Plasmonics. 11:721-727
- Publication Year :
- 2015
- Publisher :
- Springer Science and Business Media LLC, 2015.
-
Abstract
- Multimode optical fiber is widely used because of its large core size, strong light-gathering ability, and remote on-line sensing ability in various environments. Due to the mode coupling and polarization loss, the signal curve obtained has wide full width at half-maximum (FWHM) and small peak value. Therefore, efficient methods to calculate the resonant wavelength are required. This paper presents a method to process the surface plasmon resonance curve (SPR) based on the Fourier series fitting. The calculated resonant wavelength is obtained with one-dimensional extremum-search method. Experiment results show the proposed method can accurately calculate the resonant wavelength of high concentration solution. Additionally, the method has higher sensitivity and is unaffected by the light source fluctuation. This method has potential value in processing the SPR signal of the multimode optical fiber.
- Subjects :
- Signal processing
Multi-mode optical fiber
Optical fiber
Materials science
business.industry
Biophysics
Physics::Optics
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Biochemistry
law.invention
010309 optics
Full width at half maximum
Wavelength
Optics
Fiber optic sensor
law
0103 physical sciences
Surface plasmon resonance
0210 nano-technology
business
Fourier series
Biotechnology
Subjects
Details
- ISSN :
- 15571963 and 15571955
- Volume :
- 11
- Database :
- OpenAIRE
- Journal :
- Plasmonics
- Accession number :
- edsair.doi...........70c39043b9ed7399ef82cef08e02fe48