WO2004010549A3 - On-line recharacterization of laser diodes - Google Patents

On-line recharacterization of laser diodes Download PDF

Info

Publication number
WO2004010549A3
WO2004010549A3 PCT/IL2003/000594 IL0300594W WO2004010549A3 WO 2004010549 A3 WO2004010549 A3 WO 2004010549A3 IL 0300594 W IL0300594 W IL 0300594W WO 2004010549 A3 WO2004010549 A3 WO 2004010549A3
Authority
WO
WIPO (PCT)
Prior art keywords
laser
recharacterization
acquired
application
characterization
Prior art date
Application number
PCT/IL2003/000594
Other languages
French (fr)
Other versions
WO2004010549A2 (en
Inventor
Efraim Buimovich
Dan Sadot
Original Assignee
Xlight Photonics Inc
Efraim Buimovich
Dan Sadot
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 Xlight Photonics Inc, Efraim Buimovich, Dan Sadot filed Critical Xlight Photonics Inc
Priority to AU2003245012A priority Critical patent/AU2003245012A1/en
Publication of WO2004010549A2 publication Critical patent/WO2004010549A2/en
Publication of WO2004010549A3 publication Critical patent/WO2004010549A3/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
    • H01S5/0014—Measuring characteristics or properties thereof
    • 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
    • H01S5/0617—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium using memorised or pre-programmed laser characteristics
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Semiconductor Lasers (AREA)

Abstract

A method of collecting data points of operating modes of a tunable laser for recharacterization of the laser while installed in an application. Operation of the laser is stopped for selected time slots (12), during which data is acquired about the modes of the laser, similar to that acquired during conventional characterization of the laser. These time slots (12) are spaced over time (10) in such a way that do not significantly affect normal operation of the application. After enough measurements have been acquired, new working points are calculated using a known algorithm for laser characterization. The laser control tables of operating currents to the various sections of the laser are then updated for these new working points. The method ensures that a recharacterization cycle is completed in significantly less time than the typical time scale of the aging phenomena, such that the recharacterization process closely tracks the aging process in small steps.
PCT/IL2003/000594 2002-07-21 2003-07-21 On-line recharacterization of laser diodes WO2004010549A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003245012A AU2003245012A1 (en) 2002-07-21 2003-07-21 On-line recharacterization of laser diodes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IL150831 2002-07-21
IL15083102A IL150831A0 (en) 2002-07-21 2002-07-21 On-line recharacterization of laser diodes

Publications (2)

Publication Number Publication Date
WO2004010549A2 WO2004010549A2 (en) 2004-01-29
WO2004010549A3 true WO2004010549A3 (en) 2004-12-23

Family

ID=29765023

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2003/000594 WO2004010549A2 (en) 2002-07-21 2003-07-21 On-line recharacterization of laser diodes

Country Status (3)

Country Link
AU (1) AU2003245012A1 (en)
IL (1) IL150831A0 (en)
WO (1) WO2004010549A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832014A (en) * 1997-02-11 1998-11-03 Lucent Technologies Inc. Wavelength stabilization in tunable semiconductor lasers
US6222861B1 (en) * 1998-09-03 2001-04-24 Photonic Solutions, Inc. Method and apparatus for controlling the wavelength of a laser
US6629638B1 (en) * 1997-12-11 2003-10-07 Ceyx Technologies Electro-optic system controller and method of operation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832014A (en) * 1997-02-11 1998-11-03 Lucent Technologies Inc. Wavelength stabilization in tunable semiconductor lasers
US6629638B1 (en) * 1997-12-11 2003-10-07 Ceyx Technologies Electro-optic system controller and method of operation
US6222861B1 (en) * 1998-09-03 2001-04-24 Photonic Solutions, Inc. Method and apparatus for controlling the wavelength of a laser

Also Published As

Publication number Publication date
AU2003245012A1 (en) 2004-02-09
WO2004010549A2 (en) 2004-01-29
IL150831A0 (en) 2003-05-29
AU2003245012A8 (en) 2004-02-09

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