GB0122748D0 - Telecommunication laser transmitter systems - Google Patents

Telecommunication laser transmitter systems

Info

Publication number
GB0122748D0
GB0122748D0 GB0122748A GB0122748A GB0122748D0 GB 0122748 D0 GB0122748 D0 GB 0122748D0 GB 0122748 A GB0122748 A GB 0122748A GB 0122748 A GB0122748 A GB 0122748A GB 0122748 D0 GB0122748 D0 GB 0122748D0
Authority
GB
United Kingdom
Prior art keywords
laser transmitter
transmitter systems
telecommunication laser
telecommunication
systems
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GB0122748A
Other versions
GB2380058A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marconi Caswell Ltd
Original Assignee
Marconi Caswell 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 Marconi Caswell Ltd filed Critical Marconi Caswell Ltd
Priority to GB0122748A priority Critical patent/GB2380058A/en
Publication of GB0122748D0 publication Critical patent/GB0122748D0/en
Priority to PCT/GB2002/004267 priority patent/WO2003026087A1/en
Publication of GB2380058A publication Critical patent/GB2380058A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/0625—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in multi-section lasers
    • H01S5/06255—Controlling the frequency of the radiation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
    • H01S5/0687—Stabilising the frequency of the laser
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES 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
    • H01S5/00—Semiconductor lasers
    • H01S5/0014—Measuring characteristics or properties thereof
    • H01S5/0042—On wafer testing, e.g. lasers are tested before separating wafer into chips
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES 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
    • H01S5/00—Semiconductor lasers
    • H01S5/02—Structural details or components not essential to laser action
    • H01S5/0201—Separation of the wafer into individual elements, e.g. by dicing, cleaving, etching or directly during growth
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/0625—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in multi-section lasers
    • H01S5/06255—Controlling the frequency of the radiation
    • H01S5/06256—Controlling the frequency of the radiation with DBR-structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES 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
    • H01S5/00—Semiconductor lasers
    • H01S5/10—Construction 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
    • H01S5/12—Construction 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
    • H01S5/1206—Construction 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 having a non constant or multiplicity of periods
    • H01S5/1215—Multiplicity of periods
    • H01S5/1218—Multiplicity of periods in superstructured configuration, e.g. more than one period in an alternate sequence
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES 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
    • H01S5/00—Semiconductor lasers
    • H01S5/10—Construction 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
    • H01S5/12—Construction 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
    • H01S5/124—Construction 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 incorporating phase shifts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES 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
    • H01S5/00—Semiconductor lasers
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
GB0122748A 2001-09-21 2001-09-21 Telecommunication laser transmitter systems and methods of operating such systems Withdrawn GB2380058A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0122748A GB2380058A (en) 2001-09-21 2001-09-21 Telecommunication laser transmitter systems and methods of operating such systems
PCT/GB2002/004267 WO2003026087A1 (en) 2001-09-21 2002-09-19 Telecommunication laser transmitter systems and methods of operating such systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0122748A GB2380058A (en) 2001-09-21 2001-09-21 Telecommunication laser transmitter systems and methods of operating such systems

Publications (2)

Publication Number Publication Date
GB0122748D0 true GB0122748D0 (en) 2001-11-14
GB2380058A GB2380058A (en) 2003-03-26

Family

ID=9922443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0122748A Withdrawn GB2380058A (en) 2001-09-21 2001-09-21 Telecommunication laser transmitter systems and methods of operating such systems

Country Status (2)

Country Link
GB (1) GB2380058A (en)
WO (1) WO2003026087A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2016230025B2 (en) 2015-03-06 2018-05-10 Apple Inc. Independent control of emission wavelength and output power of a semiconductor laser
CN107624206B (en) * 2015-04-30 2022-05-27 苹果公司 Vernier effect DBR laser including integrated tuning element
US11552454B1 (en) 2017-09-28 2023-01-10 Apple Inc. Integrated laser source
EP3688849A1 (en) 2017-09-28 2020-08-05 Apple Inc. Laser architectures using quantum well intermixing techniques
US11171464B1 (en) 2018-12-14 2021-11-09 Apple Inc. Laser integration techniques
CN117578172A (en) * 2024-01-17 2024-02-20 山东中芯光电科技有限公司 Wavelength expansion method and system based on DBR laser

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997005679A1 (en) * 1995-07-27 1997-02-13 Jds Fitel Inc. Method and device for wavelength locking
US5832014A (en) * 1997-02-11 1998-11-03 Lucent Technologies Inc. Wavelength stabilization in tunable semiconductor lasers
US6120190A (en) * 1997-11-26 2000-09-19 Lasertron, Inc. Spatially variable bandpass filter monitoring and feedback control of laser wavelength especially in wavelength division multiplexing communication systems
SE515435C2 (en) * 1999-02-17 2001-08-06 Altitun Ab Method of wavelength locking and mode control of a tunable laser
SE518827C2 (en) * 1999-02-17 2002-11-26 Altitun Ab Method for characterizing a tunable laser
US6323987B1 (en) * 1999-05-14 2001-11-27 Agere Systems Optoelectronics Guardian Corp. Controlled multi-wavelength etalon
US6546028B1 (en) * 1999-08-10 2003-04-08 Coretek, Inc. Optical fiber wavelength reference device
EP1221186A1 (en) * 1999-10-15 2002-07-10 Tsunami Photonics Limited Optoelectronic device incorporating a tunable laser and method of characterisation thereof
AU2618601A (en) * 1999-10-26 2001-06-06 Coretek, Inc. Wavelength stabilization of tunable lasers by current modulation

Also Published As

Publication number Publication date
WO2003026087A1 (en) 2003-03-27
GB2380058A (en) 2003-03-26

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Legal Events

Date Code Title Description
COOA Change in applicant's name or ownership of the application
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)