DK3144633T3 - Fiber-bragg-gitter interrogatoranordning og fremgangsmåde til samme - Google Patents
Fiber-bragg-gitter interrogatoranordning og fremgangsmåde til samme Download PDFInfo
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- DK3144633T3 DK3144633T3 DK16188939.9T DK16188939T DK3144633T3 DK 3144633 T3 DK3144633 T3 DK 3144633T3 DK 16188939 T DK16188939 T DK 16188939T DK 3144633 T3 DK3144633 T3 DK 3144633T3
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- 230000003595 spectral effect Effects 0.000 claims abstract description 94
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- 238000009826 distribution Methods 0.000 claims abstract description 34
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12023—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by means for reducing the polarisation dependence, e.g. reduced birefringence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/168—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of polarisation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/18—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge using photoelastic elements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/353—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre
- G01D5/35306—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement
- G01D5/35309—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer
- G01D5/35316—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells influencing the transmission properties of an optical fibre using an interferometer arrangement using multiple waves interferometer using a Bragg gratings
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
- G02B6/02195—Refractive index modulation gratings, e.g. Bragg gratings characterised by means for tuning the grating
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12019—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the optical interconnection to or from the AWG devices, e.g. integration or coupling with lasers or photodiodes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12033—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by means for configuring the device, e.g. moveable element for wavelength tuning
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Spectrometry And Color Measurement (AREA)
- Optical Communication System (AREA)
- Optical Transform (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Claims (14)
1. Fiber-Bragg-gitter-interrogatoranordning, der omfatter: - en optisk fiber (120), der indbefatter et fiber-Bragg-gitter (FBG; 122) med en variabel Bragg-bølgelængde (λβ) og et dynamisk interval af interesse (Akdyn.e), hvorover Bragg-bølgelængden (λβ) kan forskydes under anvendelse; - en lyskilde (102), der er operativt forbundet med den optiske fiber (120) og konfigureret til belyse fiber-Bragg-gitteret (122) for at opnå et respons derfra; og - en responsanalysator (140), der indbefatter: - en spektralt selektiv anordning (142) med en udgangsåbning (145) og en flerhed af udgangsåbninger (149-n), hvor indgangsåbningen er operativt forbundet med den optiske fiber (120), og hvor hver udgangsåbning er forbundet med et tilsvarende spektralt interval (Δλη), hvilken spektralt selektiv anordning er konfigureret til at tilvejebringe en spektral energifordeling af et respons fra fiber-Bragg-gitteret, der er modtaget på indgangsåbningen, på udgangsåbningeme (149-n); hvor den spektralt selektive anordning (142) er konfigureret til adskille to vinkelrette polariseringskomponenter af indfaldende lys på i alt væsentlige ikke-overlappende spektrale intervaller i den spektrale energifordeling for udgangsåbningerne (149-n), således at hver udgangsåbning har et spektralt interval for hver af de to polariseringskomponenter, hvor responsanalysatoren indbefatter en behandlingsenhed (154), der er er konfigureret til anvende detekteringsresultater vedrørende de adskilte vinkelrette polariseringskomponenter for at korrigere en polariseringsafhængighed for den spektralt selektive anordning (142).
2. Anordning ifølge krav 1, hvor den spektralt selektive anordning (142) er konfigureret til adskille polariseringskomponenterne af indfaldende lys i en første polariseringskomponent, der omfatter en tværgående elektrisk (TE) modusbølge, og i en anden polariseringskomponent, der omfatter en tværgående magnetisk (TM) modusbølge, på i alt væsentlige ikke-overlappende spektrale intervaller i den spektrale energifordeling for udgangsåbningerne (149-n).
3. Anordning ifølge krav 1 eller 2, hvor den spektralt selektive anordning (142) omfatter et bølgeleder-array-gitter (AWG, arrayed wave guide grating).
4. Anordning ifølge krav 3, hvor den spektralt selektive anordning (142) omfatter indstillelige bølgeledere, der er indrettet til at blive indstillet således, at polariseringsspredningen i den spektrale energifordeling for udgangsåbningeme (149-n) er optimeret til at adskille to vinkelrette polariseringskomponenter af indfaldende lys på i alt væsentlige ikke-overlappende spektrale intervaller i den spektrale energifordeling for udgangsåbningeme (149-n).
5. Anordning ifølge et hvilket som helst af de foregående krav, der endvidere omfatter: - en flerhed af fotodetektorer (150), der er optisk koblet til flerheden af udgangsåbninger (149-n) i et ét-til-ét-forhold, hvor hver fotodetektor er konfigureret til at generere et signal, der indikerer en intensitet af et optisk signal modtaget ved den tilsvarende udgangsåbning; og - en behandlingsenhed (154), der er operativt forbundet med flerheden af fotodetektorer (149-n) og konfigureret til at bestemme en aktuel Bragg-bølgelængde for fiber-Bragg-gitteret (122) ud fra signalerne fra fotodetektorerne, der indbefatter korrektion for den spektralt selektive anordnings (142) polariseringsafhængighed.
6. Anordning ifølge krav 5, hvor behandlingsenheden (154) er konfigureret til at bestemme den aktuelle Bragg-bølgelængde som en intensitetsvægtet middelbølgelængde, der indbefatter korrektion for den spektralt selektive anordnings (142) polariseringsafhængighed.
7. Anordning ifølge krav 5 eller 6, hvor behandlingsenheden (154) er konfigureret til at bestemme polariseringskorrektionsbølgelængden som en forholdsbaseret vægtet middelbølgelængde af to polariseringsintensitetsvægtede middelbølgelængder.
8. Anordning ifølge et hvilket som helst af de foregående krav, hvor udgangsåbningen (149-n) har et spektralt interval på Δλ„, der strækker sig fra bølgelængde λχ til bølgelængde Xy, hvor et tilsvarende kanalrespons fra en første polariseringskomponent har et spektralt interval på Δλη /2, der strækker sig fra bølgelængde λχ til bølgelængde (1/2)(λγ - λχ), hvor et tilsvarende kanalrespons fra en anden polariseringskomponent, har et spektralt interval på Δλ„ /2, der strækker sig fra bølgelængde (1/2)(λγ - λχ) til bølgelængde Xy.
9. Anordning ifølge et hvilket som helst af de foregående krav, hvor de spektrale intervaller af hver mindst tre successive udgangsåbninger delvist overlapper hinanden, således at FBG’s Bragg-bølgelængde falder inden for de spektrale intervaller af mindst tre successive udgangsåbninger over det dynamiske interval af interesse for FBG.
10. Fremgangsmåde til forespørgsel til et fiber-Bragg-gitter (FBG), der omfatter: - tilvejebringelse af et fiber-Bragg-gitter (122) med en variabel Bragg-bølgelængde (λβ) og et dynamisk interval af interesse (Akdyn,B), hvorover Bragg-bølgelængden (λβ) kan forskydes under anvendelse; - belysning af fiber-Bragg-gitteret (122) for at opnå et respons derfra; og - adskillelse af responset i en flerhed af udgangskanaler (149-n), hvor hver udgangskanal har et tilsvarende spektralt interval (Δλ„), hvor en spektralt selektiv anordning (142) adskiller to vinkelrette polariseringskomponenter af indfaldende lys på i alt væsentlige ikke-overlappende spektrale intervaller i den spektrale energifordeling for udgangsåbningerne (149-n), således at hver udgangsåbning (149-n) modtager et tilsvarende par af i alt væsentlige ikke-overlappende spektrale intervaller af de to polariseringskomponenter, hvor en behandlingsenhed (154) anvender detekteringsresultater vedrørende de adskilt vinkelrette polariseringskomponenter til at korrigere en polariseringsafhængighed for den spektralt selektive anordning (142).
11. Fremgangsmåde ifølge krav 10, der indbefatter indstilling af den spektralt selektive anordnings (142) bølgeledere, således at polariseringsspredningen i den spektrale energifordeling for udgangsåbningerne (149-n) er optimeret til at adskille to vinkelrette polariseringskomponenter af indfaldende lys på i alt væsentlige ikke-overlappende spektrale intervaller i den spektrale energifordeling for udgangsåbningerne (149-n).
12. Fremgangsmåde ifølge krav 10 eller 11, der endvidere omfatter bestemmelse af en polariseringskorrektionsfaktor som en forholdsbaseret vægtet middelbølgelængde af to polariseringsintensitetsvægtede middelbølgelængder.
13. Fremgangsmåde ifølge et hvilket som helst af kravene 10-12, hvor de spektrale intervaller af hver mindst tre successive udgangsåbninger delvist overlapper hinanden, således at FBG’s Bragg-bølgelængde falder inden for de spektrale intervaller af mindst tre successive udgangsåbninger over det dynamiske interval af interesse for FBG.
14. Fremgangsmåde ifølge et hvilket som helst af kravene 10-13, hvor hvert par af i det væsentlige ikke-overlappende spektrale intervaller, der vedrører de to vinkelrette polariseringskomponenter af indfaldende lys, er forbundet med en enkelt udgangsåbning.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2015448A NL2015448B1 (en) | 2015-09-16 | 2015-09-16 | Fiber Bragg grating interrogator assembly and method for the same. |
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| Publication Number | Publication Date |
|---|---|
| DK3144633T3 true DK3144633T3 (da) | 2018-07-23 |
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| DK16188939.9T DK3144633T3 (da) | 2015-09-16 | 2016-09-15 | Fiber-bragg-gitter interrogatoranordning og fremgangsmåde til samme |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US10247880B2 (da) |
| EP (1) | EP3144633B1 (da) |
| DK (1) | DK3144633T3 (da) |
| ES (1) | ES2675944T3 (da) |
| NL (1) | NL2015448B1 (da) |
| PL (1) | PL3144633T3 (da) |
| PT (1) | PT3144633T (da) |
| TR (1) | TR201809273T4 (da) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016086310A1 (en) * | 2014-12-04 | 2016-06-09 | Hifi Engineering Inc. | Optical interrogator for performing interferometry using fiber bragg gratings |
| US10627341B1 (en) * | 2019-02-25 | 2020-04-21 | United States Of America As Represented By Secretary Of The Navy | Optical interrogator for measuring polarization properties |
| JP7115387B2 (ja) * | 2019-03-27 | 2022-08-09 | ウシオ電機株式会社 | 光測定用光源装置、分光測定装置及び分光測定方法 |
| FR3095864B1 (fr) * | 2019-05-07 | 2021-06-04 | Commissariat Energie Atomique | Dispositif de répartition de signal pour la mesure de décalages en longueur d’onde |
| KR20220043209A (ko) * | 2019-08-14 | 2022-04-05 | 브렘보우 에스.피.에이. | 조정 가능한 광학 대역통과 필터를 사용하여, 광섬유 브래그 격자 타입의 광 섬유 센서를 인터로게이팅하는 방법 및 시스템 |
| NL2024038B1 (en) | 2019-10-17 | 2021-06-22 | Boschman Tech B V | Component Processing Apparatus, such as a Pressure Sintering Apparatus or a Component Encapsulation Apparatus |
| US11761828B2 (en) * | 2020-04-14 | 2023-09-19 | Ultra Communications, Inc. | Single wavelength fiber grating sensing with spatial location |
| DE102020113680A1 (de) | 2020-05-20 | 2021-11-25 | Rosen Swiss Ag | Sensorvorrichtung mit einem eingebetteten optischen Interrogator |
| IT202000032027A1 (it) * | 2020-12-23 | 2022-06-23 | Brembo Spa | Metodo e sistema per interrogare un sensore fibre bragg grating birifrangente, impiegante rilevazione ottica eterodina |
| US11965732B2 (en) * | 2021-02-17 | 2024-04-23 | Touch Netix Limited | Methods and sensor for measuring strain |
| NL2035679B1 (en) | 2023-08-25 | 2025-03-10 | Photonfirst Ip B V | PIC device and method for resonant sensing in a waveguide |
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| US7359597B1 (en) * | 2004-08-23 | 2008-04-15 | Lightsmyth Technologies Inc | Birefringence control in planar optical waveguides |
| CA2518173A1 (en) * | 2004-09-02 | 2006-03-02 | National Research Council Of Canada | Simultaneous interrogation of multi wavelength-modulated fiber optical sensors by modulating an arrayed waveguide grating based demultiplexer |
| US7853108B2 (en) * | 2006-12-29 | 2010-12-14 | Massachusetts Institute Of Technology | Fabrication-tolerant waveguides and resonators |
| DK2206001T3 (da) * | 2007-11-09 | 2014-07-07 | Draka Comteq Bv | Optisk fiber, der er modstandsdygtig over for mikrobøjning |
| US8526472B2 (en) * | 2009-09-03 | 2013-09-03 | Axsun Technologies, Inc. | ASE swept source with self-tracking filter for OCT medical imaging |
| WO2013049942A1 (en) * | 2011-10-06 | 2013-04-11 | Valorbec S.E.C. | High efficiency mono-order concave diffraction grating |
| US9110259B1 (en) | 2013-03-14 | 2015-08-18 | Intelligent Fiber Optic Systems, Inc. | Interleaved aliased AWG filter for continuous wideband wavelength discrimination |
| NL2010940C2 (en) * | 2013-06-07 | 2014-12-09 | Technobis Group B V | Fiber bragg grating interrogator assembly and method for the same. |
| CA2942176C (en) * | 2014-03-07 | 2021-01-05 | Aeponyx Inc. | Methods and system for wavelength tunable optical components and sub-systems |
-
2015
- 2015-09-16 NL NL2015448A patent/NL2015448B1/en not_active IP Right Cessation
-
2016
- 2016-09-14 US US15/265,439 patent/US10247880B2/en active Active
- 2016-09-15 TR TR2018/09273T patent/TR201809273T4/tr unknown
- 2016-09-15 PL PL16188939T patent/PL3144633T3/pl unknown
- 2016-09-15 EP EP16188939.9A patent/EP3144633B1/en active Active
- 2016-09-15 PT PT161889399T patent/PT3144633T/pt unknown
- 2016-09-15 ES ES16188939.9T patent/ES2675944T3/es active Active
- 2016-09-15 DK DK16188939.9T patent/DK3144633T3/da active
Also Published As
| Publication number | Publication date |
|---|---|
| PL3144633T3 (pl) | 2018-10-31 |
| EP3144633A1 (en) | 2017-03-22 |
| US20170075064A1 (en) | 2017-03-16 |
| EP3144633B1 (en) | 2018-04-11 |
| TR201809273T4 (tr) | 2018-07-23 |
| NL2015448B1 (en) | 2017-04-03 |
| PT3144633T (pt) | 2018-07-06 |
| US10247880B2 (en) | 2019-04-02 |
| ES2675944T3 (es) | 2018-07-13 |
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