SG11201702807YA - Thermal compensation for burst-mode laser wavelength drift - Google Patents

Thermal compensation for burst-mode laser wavelength drift

Info

Publication number
SG11201702807YA
SG11201702807YA SG11201702807YA SG11201702807YA SG11201702807YA SG 11201702807Y A SG11201702807Y A SG 11201702807YA SG 11201702807Y A SG11201702807Y A SG 11201702807YA SG 11201702807Y A SG11201702807Y A SG 11201702807YA SG 11201702807Y A SG11201702807Y A SG 11201702807YA
Authority
SG
Singapore
Prior art keywords
burst
laser wavelength
thermal compensation
mode laser
wavelength drift
Prior art date
Application number
SG11201702807YA
Inventor
Xuejin Yan
Jianmin Gong
Hongbing Lei
Jianhe Gao
Original Assignee
Huawei Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of SG11201702807YA publication Critical patent/SG11201702807YA/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0607Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature
    • H01S5/0612Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by temperature
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0607Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature
    • H01S5/0608Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch
    • H01S5/0609Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch acting on an absorbing region, e.g. wavelength convertors
    • H01S5/0611Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying physical parameters other than the potential of the electrodes, e.g. by an electric or magnetic field, mechanical deformation, pressure, light, temperature controlled by light, e.g. optical switch acting on an absorbing region, e.g. wavelength convertors wavelength convertors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/02Structural details or components not essential to laser action
    • H01S5/024Arrangements for thermal management
    • H01S5/02453Heating, e.g. the laser is heated for stabilisation against temperature fluctuations of the environment
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/02Structural details or components not essential to laser action
    • H01S5/026Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers
    • H01S5/0261Non-optical elements, e.g. laser driver components, heaters
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/10Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/12Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/30Structure or shape of the active region; Materials used for the active region
    • H01S5/32Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures
    • H01S5/323Structure or shape of the active region; Materials used for the active region comprising PN junctions, e.g. hetero- or double- heterostructures in AIIIBV compounds, e.g. AlGaAs-laser, InP-based laser
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S2301/00Functional characteristics
    • H01S2301/17Semiconductor lasers comprising special layers
    • H01S2301/176Specific passivation layers on surfaces other than the emission facet
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/02Structural details or components not essential to laser action
    • H01S5/024Arrangements for thermal management
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/04Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042Electrical excitation ; Circuits therefor
    • H01S5/0425Electrodes, e.g. characterised by the structure
    • H01S5/04252Electrodes, e.g. characterised by the structure characterised by the material
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/04Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042Electrical excitation ; Circuits therefor
    • H01S5/0425Electrodes, e.g. characterised by the structure
    • H01S5/04256Electrodes, e.g. characterised by the structure characterised by the configuration
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06213Amplitude modulation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06216Pulse modulation or generation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068Stabilisation of laser output parameters
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/20Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
    • H01S5/22Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/20Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
    • H01S5/22Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
    • H01S5/2205Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure comprising special burying or current confinement layers
    • H01S5/2222Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure comprising special burying or current confinement layers having special electric properties
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/20Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
    • H01S5/22Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
    • H01S5/223Buried stripe structure
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00Semiconductor lasers
    • H01S5/20Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers
    • H01S5/22Structure or shape of the semiconductor body to guide the optical wave ; Confining structures perpendicular to the optical axis, e.g. index or gain guiding, stripe geometry, broad area lasers, gain tailoring, transverse or lateral reflectors, special cladding structures, MQW barrier reflection layers having a ridge or stripe structure
    • H01S5/227Buried mesa structure ; Striped active layer

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Geometry (AREA)
  • Semiconductor Lasers (AREA)
SG11201702807YA 2014-10-08 2015-09-28 Thermal compensation for burst-mode laser wavelength drift SG11201702807YA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/509,662 US9246307B1 (en) 2014-10-08 2014-10-08 Thermal compensation for burst-mode laser wavelength drift
PCT/CN2015/090922 WO2016054981A1 (en) 2014-10-08 2015-09-28 Thermal compensation for burst-mode laser wavelength drift

Publications (1)

Publication Number Publication Date
SG11201702807YA true SG11201702807YA (en) 2017-05-30

Family

ID=55086263

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201702807YA SG11201702807YA (en) 2014-10-08 2015-09-28 Thermal compensation for burst-mode laser wavelength drift

Country Status (11)

Country Link
US (1) US9246307B1 (en)
EP (2) EP4123850B1 (en)
JP (1) JP6607581B2 (en)
KR (1) KR101963988B1 (en)
CN (1) CN106716751B (en)
AU (1) AU2015330500B2 (en)
CA (1) CA2964174C (en)
FI (1) FI4123850T3 (en)
RU (1) RU2680981C2 (en)
SG (1) SG11201702807YA (en)
WO (1) WO2016054981A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5785589B2 (en) * 2013-06-27 2015-09-30 日本電信電話株式会社 Burst optical signal transmitter and control method of burst optical signal transmitter
US9537287B2 (en) * 2014-10-08 2017-01-03 Futurewei Technologies, Inc. Thermal compensation for burst-mode laser wavelength drift
JP6974427B2 (en) * 2016-07-21 2021-12-01 華為技術有限公司Huawei Technologies Co., Ltd. Wavelength shift control method and system
KR101928387B1 (en) * 2016-11-25 2018-12-12 주식회사 포벨 Optical transmitter with heater and control method of
JP6738488B2 (en) * 2017-05-15 2020-08-12 日本電信電話株式会社 Semiconductor optical device
KR101972600B1 (en) * 2018-02-12 2019-08-16 김정수 Optical Transmitter Operating Burst Mode and Control Method of Optical Transmitter Operating Burst Mode
CN110945802B (en) * 2017-07-29 2023-01-20 光速株式会社 Optical transmitter operating in burst mode and method for controlling optical transmitter operating in burst mode
CN107508139B (en) * 2017-08-28 2019-11-08 武汉电信器件有限公司 The method and laser of wave length shift under a kind of reduction burst mode of laser
CN107888293B (en) * 2017-11-24 2020-05-12 青岛海信宽带多媒体技术有限公司 Optical module
CN108512017A (en) * 2018-03-28 2018-09-07 武汉电信器件有限公司 A kind of laser assembly with positive function of temperature control
WO2019226333A1 (en) * 2018-05-21 2019-11-28 Google Llc Wavelength drift suppression for burst-mode tunable eml laser
CN112189286B (en) * 2018-05-21 2024-06-14 谷歌有限责任公司 Switching circuit for burst mode tunable laser
DE102018118694A1 (en) * 2018-08-01 2020-02-06 Osram Opto Semiconductors Gmbh laser diode chip
US11018474B2 (en) 2018-11-30 2021-05-25 Optella Inc. Laser temperature compensation system and driving method thereof
CN111431593B (en) * 2020-03-26 2021-04-06 武汉光迅科技股份有限公司 Wavelength drift measuring method and wavelength drift measuring system
KR20240104642A (en) * 2022-12-28 2024-07-05 주식회사 포벨 DWDM Optical Device with Two Light Source Chips

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2091302A1 (en) * 1992-03-11 1993-09-12 Ichiro Yoshida Semiconductor laser and process for fabricating the same
JP3196787B2 (en) * 1992-06-03 2001-08-06 住友電気工業株式会社 How to use semiconductor laser
IT1268058B1 (en) * 1994-05-20 1997-02-20 Cselt Centro Studi Lab Telec O PROCEDURE AND DEVICE FOR CHECKING THE PEAK POWER OF A LASER TRANSMITTER IN DISCONTINUOUS OPTICAL TRANSMISSION SYSTEMS.
US5615224A (en) * 1995-01-04 1997-03-25 The Regents Of The University Of California Apparatus and method for stabilization of the bandgap and associated properties of semiconductor electronic and optoelectronic devices
GB2309335B (en) * 1996-01-22 1998-04-08 Northern Telecom Ltd Thin film resistor for optoelectronic integrated circuits
JP2000101143A (en) * 1998-09-25 2000-04-07 Nippon Telegr & Teleph Corp <Ntt> Semiconductor light emitting element mounting board, wavelength-variable light emitting device and wavelength-variable light emitting array
JP4074724B2 (en) * 1999-04-07 2008-04-09 日本オプネクスト株式会社 Wavelength tunable light source and optical apparatus using the same
US6703666B1 (en) * 1999-07-14 2004-03-09 Agere Systems Inc. Thin film resistor device and a method of manufacture therefor
AU2002342020A1 (en) * 2001-10-09 2003-04-22 Infinera Corporation Transmitter photonic integrated circuit
JP4231854B2 (en) * 2005-03-17 2009-03-04 アンリツ株式会社 Semiconductor laser element and gas detector
KR100698160B1 (en) * 2005-09-09 2007-03-22 엘지전자 주식회사 A network searching method for a mobile telecommunication device
RU2316864C1 (en) * 2006-03-20 2008-02-10 Михаил Ильич Свердлов Laser radiator
US20080063016A1 (en) 2006-09-13 2008-03-13 Vikram Bhatia Thermal compensation in semiconductor lasers
US7602027B2 (en) * 2006-12-29 2009-10-13 Semiconductor Components Industries, L.L.C. Semiconductor component and method of manufacture
WO2010018574A1 (en) * 2008-08-11 2010-02-18 Explay Ltd. Laser assembly and method and system for its operation
US8149890B2 (en) * 2008-12-04 2012-04-03 Electronics And Telecommunications Research Institute Multiple distributed feedback laser devices
US8204094B2 (en) * 2009-04-21 2012-06-19 Innova, Inc. Scalable, efficient laser systems
JP5853599B2 (en) * 2011-11-01 2016-02-09 富士通株式会社 Light emitting device and control method thereof
CN102545040B (en) * 2011-11-29 2013-04-10 厦门优迅高速芯片有限公司 Burst mode optical power holding and monitoring circuit
JP5990971B2 (en) * 2012-03-28 2016-09-14 富士通株式会社 Optical semiconductor device
JP2014003224A (en) * 2012-06-20 2014-01-09 Sumitomo Electric Ind Ltd Method for controlling wavelength of laser beam

Also Published As

Publication number Publication date
EP3192137B1 (en) 2022-11-02
US9246307B1 (en) 2016-01-26
RU2017115722A (en) 2018-11-13
EP3192137A1 (en) 2017-07-19
RU2680981C2 (en) 2019-03-01
CN106716751B (en) 2019-12-06
KR20170060147A (en) 2017-05-31
CA2964174A1 (en) 2016-04-14
AU2015330500B2 (en) 2017-11-23
EP3192137A4 (en) 2018-02-14
RU2017115722A3 (en) 2018-11-13
JP6607581B2 (en) 2019-11-20
CA2964174C (en) 2021-03-30
KR101963988B1 (en) 2019-03-29
CN106716751A (en) 2017-05-24
EP4123850A1 (en) 2023-01-25
AU2015330500A1 (en) 2017-04-27
WO2016054981A1 (en) 2016-04-14
FI4123850T3 (en) 2024-02-21
EP4123850B1 (en) 2024-01-31
JP2017531923A (en) 2017-10-26

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