SE0102980D0 - Laser modulation control - Google Patents
Laser modulation controlInfo
- Publication number
- SE0102980D0 SE0102980D0 SE0102980A SE0102980A SE0102980D0 SE 0102980 D0 SE0102980 D0 SE 0102980D0 SE 0102980 A SE0102980 A SE 0102980A SE 0102980 A SE0102980 A SE 0102980A SE 0102980 D0 SE0102980 D0 SE 0102980D0
- Authority
- SE
- Sweden
- Prior art keywords
- modulation control
- laser modulation
- component
- adjustment
- detected
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
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
- H01S5/068—Stabilisation of laser output parameters
- H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
-
- 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
- H01S5/06832—Stabilising during amplitude modulation
-
- 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
- H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
- Optical Communication System (AREA)
Abstract
The optical power emitted by a semiconductor laser (1) is measured by a monitor diode (11) for adjusting bias and modulation currents (Ib, Im} .Extra predetermined bits are inserted by an earlier stage in the input signal at regular intervals to provide a low frequency component. This component can be detected and used for the adjustment.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0102980A SE523137C2 (en) | 2001-09-07 | 2001-09-07 | Laser modulation control |
PCT/SE2002/001603 WO2003023917A1 (en) | 2001-09-07 | 2002-09-06 | Laser modulation control |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0102980A SE523137C2 (en) | 2001-09-07 | 2001-09-07 | Laser modulation control |
Publications (3)
Publication Number | Publication Date |
---|---|
SE0102980D0 true SE0102980D0 (en) | 2001-09-07 |
SE0102980L SE0102980L (en) | 2003-03-08 |
SE523137C2 SE523137C2 (en) | 2004-03-30 |
Family
ID=20285261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0102980A SE523137C2 (en) | 2001-09-07 | 2001-09-07 | Laser modulation control |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE523137C2 (en) |
WO (1) | WO2003023917A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2406237B (en) | 2003-09-20 | 2007-08-08 | Agilent Technologies Inc | An electro-optical communication system |
CN105659132A (en) | 2013-09-13 | 2016-06-08 | 康宁光电通信有限责任公司 | Methods, circuits and optical cable assemblies for optical transmission of high-speed data and low-speed data |
CN104596970B (en) * | 2014-12-30 | 2017-03-22 | 南京大学 | Intermediate infrared laser gas sensing detecting device and intermediate infrared laser gas sensing detecting method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2258753B (en) * | 1991-08-15 | 1995-02-15 | Northern Telecom Ltd | Injection laser modulation |
US5268916A (en) * | 1992-06-15 | 1993-12-07 | Alcatel Network Systems, Inc. | Laser bias and modulation circuit |
US6078601A (en) * | 1997-03-07 | 2000-06-20 | Smith; David F. | Method for controlling the operation of a laser |
-
2001
- 2001-09-07 SE SE0102980A patent/SE523137C2/en not_active IP Right Cessation
-
2002
- 2002-09-06 WO PCT/SE2002/001603 patent/WO2003023917A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2003023917A1 (en) | 2003-03-20 |
SE523137C2 (en) | 2004-03-30 |
SE0102980L (en) | 2003-03-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |