SE0102980D0 - Laser modulation control - Google Patents

Laser modulation control

Info

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
Application number
SE0102980A
Other languages
Swedish (sv)
Other versions
SE523137C2 (en
SE0102980L (en
Inventor
Lars-Goete Svenson
Original Assignee
Optillion Ab
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 Optillion Ab filed Critical Optillion Ab
Priority to SE0102980A priority Critical patent/SE523137C2/en
Publication of SE0102980D0 publication Critical patent/SE0102980D0/en
Priority to PCT/SE2002/001603 priority patent/WO2003023917A1/en
Publication of SE0102980L publication Critical patent/SE0102980L/en
Publication of SE523137C2 publication Critical patent/SE523137C2/en

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
    • H01S5/068—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.
SE0102980A 2001-09-07 2001-09-07 Laser modulation control SE523137C2 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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
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