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Anti-resonant reflecting guidance in alcohol-filled hollow core photonic crystal fiber for sensing applications
- Source :
- Optics Express. 21:31690
- Publication Year :
- 2013
- Publisher :
- The Optical Society, 2013.
-
Abstract
- Mechanism and sensing applications of antiresonant reflecting guidance in an alcohol-filled simplified hollow-core (SHC) photonic crystal fiber (PCF) are demonstrated. By filling one air hole in the air cladding of the PCF with alcohol, anti-resonant reflecting guidance of light can be achieved and energy leakage of the core modes can be induced at resonant wavelengths of the Fabry-Pérot (F-P) resonator formed by the alcohol-filled layer combined with the silica cladding in the cross-section of the PCF. The proposed structure exhibits periodic lossy dips in the transmission spectrum, of which the visibilities are sensitive to the refractive index of surrounding medium due to the reflectivity variation of the F-P resonator. Water level sensing is experimentally realized with this principle and the lossy dip exhibits a linear decrease against water level with a sensitivity of 1.1 dB/mm. The sensor is also sensitive to environmental temperature and a temperature sensitivity of -0.48 nm/°C is obtained between room temperature and 60 °C.
- Subjects :
- All-silica fiber
Photons
Materials science
business.industry
Transducers
Water
Equipment Design
Surface Plasmon Resonance
Cladding (fiber optics)
Atomic and Molecular Physics, and Optics
Equipment Failure Analysis
Photometry
Refractometry
Resonator
Wavelength
Transducer
Optics
Alcohols
Fiber Optic Technology
business
Refractive index
Photonic crystal
Photonic-crystal fiber
Subjects
Details
- ISSN :
- 10944087
- Volume :
- 21
- Database :
- OpenAIRE
- Journal :
- Optics Express
- Accession number :
- edsair.doi.dedup.....9e8dcdaab5bd4430eae8f96129ffcdf9