Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber
Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber
dc.contributor.author | P. Mergo | en |
dc.contributor.author | G. Statkiewicz-Barabach | en |
dc.contributor.author | Joel Pedro Carvalho | en |
dc.contributor.author | Orlando Frazão | en |
dc.contributor.author | J. Olszewski | en |
dc.contributor.author | W. Urbanczyk | en |
dc.contributor.author | José Luís Santos | en |
dc.date.accessioned | 2017-11-17T11:53:16Z | |
dc.date.available | 2017-11-17T11:53:16Z | |
dc.date.issued | 2011 | en |
dc.description.abstract | We present a compact in-line fiber interferometric sensor fabricated in a boron doped two-mode highly birefringent microstructured fiber using a CO2 laser. The intermodal interference arises at the fiber output due to coupling between the fundamental and the first order modes occurring at two fiber tapers distant by a few millimeters. The visibility of intermodal interference fringes is modulated by a polarimetric differential signal and varies in response to measurand changes. The proposed interferometer was tested for measurements of the strain and temperature, respectively, in the range of 20-700 °C and 0-17 mstrain. The sensitivity coefficients corresponding to fringe displacement and contrast variations are equal respectively for strain −2:51nm=mstrain and −0:0256 1=mstrain and for temperature 16:7pm=°C and 5:74 × 10−5 1=°C. This allows for simultaneous measurements of the two parameters by interrogation of the visibility and the displacement of interference fringes. | en |
dc.identifier.uri | http://repositorio.inesctec.pt/handle/123456789/3276 | |
dc.language | eng | en |
dc.relation | 347 | en |
dc.relation | 4388 | en |
dc.relation | 4061 | en |
dc.rights | info:eu-repo/semantics/openAccess | en |
dc.title | Intermodal interferometer for strain and temperature sensing fabricated in birefringent boron doped microstructured fiber | en |
dc.type | article | en |
dc.type | Publication | en |