GB0122748D0 - Telecommunication laser transmitter systems - Google Patents
Telecommunication laser transmitter systemsInfo
- 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- Withdrawn
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
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3251185B1 (en) | 2015-03-06 | 2024-07-10 | Apple Inc. | Independent control of emission wavelength and output power of a semiconductor laser |
US11437779B2 (en) * | 2015-04-30 | 2022-09-06 | Apple Inc. | Vernier effect DBR lasers incorporating integrated tuning elements |
EP3688849A1 (en) | 2017-09-28 | 2020-08-05 | Apple Inc. | Laser architectures using quantum well intermixing techniques |
US11552454B1 (en) | 2017-09-28 | 2023-01-10 | Apple Inc. | Integrated laser source |
US11171464B1 (en) | 2018-12-14 | 2021-11-09 | Apple Inc. | Laser integration techniques |
CN117578172B (en) * | 2024-01-17 | 2024-05-17 | 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)
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 |
CA2381658A1 (en) * | 1999-08-10 | 2001-02-15 | Kevin Mccallion | 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 |
WO2001035502A1 (en) * | 1999-10-26 | 2001-05-17 | Coretek, Inc. | Wavelength stabilization of tunable lasers by current modulation |
-
2001
- 2001-09-21 GB GB0122748A patent/GB2380058A/en not_active Withdrawn
-
2002
- 2002-09-19 WO PCT/GB2002/004267 patent/WO2003026087A1/en not_active Application Discontinuation
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) |