Patent Number CA2781555 A1 2011-05-26
 
Birefringent micro-structured optical fiber for sensor application
The invention relates to the field of fiber structures, preferably adapted for use with fiber Bragg gratings in sensors.The fiber structure comprises a core and a cladding surrounding the core, a central micro structure (1) comprising a first plurality of longitudinal holes, wherein the central microstructure (1) is adapted for guiding optical radiation and for birefringence in the core, a side microstructure (2) comprising a second plurality of longitudinal holes, wherein the side microstructure (2) is at least partly surrounding the central microstructure (1) and is adapted for providing a predetermined mechanical anisotropy (anisotropic response to mechanical strain, or as anisotropic mechanical stiffness), a pressure responsive unit adapted for converting an isotropic pressure force to birefringence changes on the core, a lateral force responsive unit adapted for converting a directional pressure force to birefringence changes on the core, a temperature responsive unit adapted for converting temperature to birefringence changes on the core, and a birefringence responsive unit adapted for converting birefringence in the core to wavelength information.In this way, a fiber structure is provided that allows increasing the ratio of mechanical to thermal sensitivity up to several orders of magnitude with similar sized mode areas.
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FamPat family
Publication Number Type Publi.Date Links
  EP2502102 A1 2012-09-26
STG: (A1) Application published with search report
AP: 2010EP-0803451
  EP2502102 B1 2018-09-05
STG: (B1) Patent specification
AP: 2010EP-0803451
  US20120224811 A1 2012-09-06
STG: (A1) Application published
AP: 2010US-13510689
  US20130163927 A9 2013-06-27
STG: (A9) Corrected patent application
AP: 2010US-13510689
  US8958676 B2 2015-02-17
STG: (B2) Granted patent as second publication
AP: 2010US-13510689
PCT  WO2011/060817 A1 2011-05-26
STG: (A1) Published application with search report
AP: 2009WO-EP65458
PCT  WO2011/061309 A1 2011-05-26
STG: (A1) Published application with search report
AP: 2010WO-EP67862
  CA2781555 A1 2011-05-26
STG: (A1) Application laid open
AP: 2010CA-2781555
  CA2781555 C 2017-09-26
STG: (C) Patent (second level)
AP: 2010CA-2781555
First Date of Grant 2018-09-05
2015-02-17
2017-09-26
Inventor GEERNAERT THOMAS
BERGHMANS FRANCIS
NASILOWSKI TOMASZ
THIENPONT HUGO
MAKARA MARIUSZ
MERGO PAWEL
POTURAJ KRZYSZTOF GRZEGORZ
URBANCZYK WACLAW
MARTYNKIEN TADEUSZ
OLSZEWSKI JACEK MAREK
WOJCIK JAN JOZEF
All applicant/assignee Vrije Universiteit Brussel ([BE])
Uniwersytet Marii Curie Sklodowskiej ([PL])
Politechnika Wroclawska (Wroclaw University Of Technology) ([PL])
Vrije Universiteit Brussel ([BE])
Uniwersytet Marii Curie Sklodowskiej ([PL])
Politechnika Wroclawska (Wroclaw University of Science and Technology) ([PL])
GEERNAERT THOMAS
BERGHMANS FRANCIS
NASILOWSKI TOMASZ
THIENPONT HUGO
MAKARA MARIUSZ
MERGO PAWEL
POTURAJ KRZYSZTOF GRZEGORZ
URBANCZYK WACLAW
MARTYNKIEN TADEUSZ
OLSZEWSKI JACEK MAREK
WOJCIK JAN JOZEF
Geernaert Thomas ([BE])
Berghmans Francis ([BE])
Nasilowski Tomasz ([BE])
Thienpont Hugo ([BE])
Makara Mariusz ([PL])
Mergo Pawel ([PL])
Poturaj Krzysztof Grzegorz ([PL])
Urbanczyk Waclaw ([PL])
Martynkien Tadeusz ([PL])
Olszewski Jacek Marek ([PL])
Wojcik Jan Jozef ([PL])
Uniwersytet Marii Curie Sklodowskiej ([PL])
Wroclaw University of Technology ([PL])
Vrije Universiteit Brussel ([BE])
VRIJE UNIVERSITEIT BRUSSEL ([BE])
Uniwersytet Marii Curie-Sklodowskiej ([PL])
Politechnika Wroclawska (Wroclaw University of Technology) ([PL])
VRIJE UNIVERSITEIT BRUSSEL ([BE])
UNIWERSYTET MARII CURIE-SKLODOWSKIEJ ([PL])
POLITECHNIKA WROCLAWSKA (WROCLAW UNIVERSITY OF TECHNOLOGY) ([PL])
VRIJE UNIVERSITEIT BRUSSEL ([BE])
UNIWERSYTET MARII CURIE-SKLODOWSKIEJ ([PL])
POLITECHNIKA WROCLAWSKA (WROCLAW UNIVERSITY OF TECHNOLOGY) ([PL])
VRIJE UNIVERSITEIT BRUSSEL ([BE])
UNIWERSYTET MARII CURIE-SKLODOWSKIEJ ([PL])
POLITECHNIKA WROCLAWSKA (WROCLAW UNIVERSITY OF TECHNOLOGY) ([PL])
Priority Details 2009WO-EP65458 2009-11-192010EP-0803451 2010-11-192010WO-EP67862 2010-11-19
Designated States Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
National States: AE AG AL AM AO AT AU AZ BA BB BG BH BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IS JP KE KG KM KN KP KR KZ LA LC LK LR LS LT LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PE PG PH PL PT RO RS RU SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ MD RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG
National States: AE AG AL AM AO AT AU AZ BA BB BG BH BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IS JP KE KG KM KN KP KR KZ LA LC LK LR LS LT LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PE PG PH PL PT RO RS RU SC SD SE SG SK SL SM ST SV SY TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ MD RU TJ TM
EPO: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG
   
©Questel