Publication:
Multiplexing temperature-compensated open-cavity Fabry-Perot sensors at a fiber tip

cris.virtual.departmentExperimentalphysik und Materialwissenschaften
cris.virtual.departmentExperimentalphysik und Materialwissenschaften
cris.virtual.department#PLACEHOLDER_PARENT_METADATA_VALUE#
cris.virtual.departmentbrowseExperimentalphysik und Materialwissenschaften
cris.virtual.departmentbrowseExperimentalphysik und Materialwissenschaften
cris.virtual.departmentbrowseExperimentalphysik und Materialwissenschaften
cris.virtual.departmentbrowseExperimentalphysik und Materialwissenschaften
cris.virtualsource.departmentfd29fe3c-c794-4f3a-827a-e3788e6e84bb
cris.virtualsource.departmente25ab10e-f014-405b-ae9d-5dfa5939c704
cris.virtualsource.department#PLACEHOLDER_PARENT_METADATA_VALUE#
dc.contributor.authorPfalzgraf, Ivonne
dc.contributor.authorSuntsov, Sergiy
dc.contributor.authorKip, Detlef
dc.date.issued2021
dc.description.abstractWe investigate multiplexing of four highly sensitive Fabry-Perot (FP) microresonators at the tip of a single-mode optical fiber for refractive index (RI) measurements with simultaneous temperature compensation. The individual sensing elements for RI or temperature consist of either open-cavity FP resonators or solid fiber core regions fabricated by diamond-blade dicing of single-mode optical fibers, respectively. The reflectivity of the open resonators is further enhanced by matched dielectric coatings. At the same time, the solid core resonators formed by the fiber pieces between the open cavities are used as thermometers. This allows immediate compensation for temperature cross-sensitivity during RI measurements. The general performance of the sensor is demonstrated by measuring the RI of sucrose solutions, where we use phase tracking of the characteristic Fourier transform components of the backreflected optical spectrum for evaluation. The temperature sensitivity is on average 20±/∘C with an accuracy of 0.01°C, fully sufficient for biomedical applications. Meanwhile, the four RI sensing (open) cavities show high sensitivity of approximately 1160 nm/RIU. Due to the compact size of the sensor, small spatial inhomogeneities of RI can be accurately detected. If the cavities are additionally filled with molecularly imprinted polymers or coated with thin functional layers, they could also be used for the detection of trace substances in biomedical laboratory-on-a-fiber applications.
dc.description.versionNA
dc.identifier.doi10.1364/AO.438565
dc.identifier.issn1539-4522
dc.identifier.issn1559-128X
dc.identifier.pmid34807050
dc.identifier.scopus2-s2.0-85119455351
dc.identifier.urihttps://openhsu.ub.hsu-hh.de/handle/10.24405/13941
dc.language.isoen
dc.publisherSoc.
dc.relation.journalApplied optics
dc.relation.orgunitExperimentalphysik und Materialwissenschaften
dc.rights.accessRightsmetadata only access
dc.titleMultiplexing temperature-compensated open-cavity Fabry-Perot sensors at a fiber tip
dc.typeResearch article
dcterms.bibliographicCitation.originalpublisherplaceWashington, DC
dspace.entity.typePublication
hsu.uniBibliography
oaire.citation.endPage10408
oaire.citation.issue33
oaire.citation.startPage10402
oaire.citation.volume60
Files