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
Files