Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7928775 | Optics Communications | 2016 | 7 Pages |
Abstract
Optical fiber Fabry-Perot interferometers (FPIs) formed by splicing hollow-core photonic crystal fiber (HCPCF) to single mode fiber (SMF) are proposed, and the temperature sensitivity characteristics are investigated theoretically and experimentally. Interestingly, the HCPCF-based FPIs with different structures have different responses to temperature: the FPI formed by a short HCPCF and a long SMF pigtail has a linear wavelength response to temperature with a sensitivity of 9.17 pm/°C and its fringe contrast is nearly temperature-insensitive; while the FPI with a long HCPCF and a short SMF cap is temperature-insensitive both for wavelength and fringe contrast. Refractive index (RI) test results show good linear response based on fringe contrast. Thus the HCPCF-based FPI sensors can be applied to temperature detection and RI measurement simultaneously with negligible cross-sensitivity or completely temperature-independent measurement by using different structures. Due to the advantages of small size, robust structure, easy fabrication, low cost and good fringe visibility, the HCPCF-based FPI sensors have broad application prospect in the fields of biology, chemistry and so on.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Xiaohui Liu, Mingshun Jiang, Qingmei Sui, Furong Song,