Strain and temperature sensitivities of an elliptical hollow-core photonic bandgap fiber based on Sagnac interferometer
- Strain and temperature sensitivities of an elliptical hollow-core photonic bandgap fiber based on Sagnac interferometer
- 김길환; 조태용; 황규진; 이관일; 이경식; 이상배
- Issue Date
- Optics express
- VOL 17, NO 4, 2481-2486
- We fabricated an elliptical hollow-core photonic bandgap fiber
(EC-PBGF) by controlling lateral tension in the hollow core region during
the fiber drawing process. The absolute value of group modal birefringence
becomes relatively high near the bandgap boundaries. We also
experimentally measured the strain and temperature sensitivities of the
fabricated EC-PBGF-based Sagnac loop interferometer. The strain and
temperature sensitivities were very much dependent upon the wavelength.
Moreover this PBGF-based interferometer can be a good sensor of physical
parameters such as strain and temperature.
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