WO2002029940A3 - Method and device for automatically balancing a laser monitoring device - Google Patents

Method and device for automatically balancing a laser monitoring device Download PDF

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Publication number
WO2002029940A3
WO2002029940A3 PCT/DE2001/003790 DE0103790W WO0229940A3 WO 2002029940 A3 WO2002029940 A3 WO 2002029940A3 DE 0103790 W DE0103790 W DE 0103790W WO 0229940 A3 WO0229940 A3 WO 0229940A3
Authority
WO
WIPO (PCT)
Prior art keywords
laser monitoring
automatically balancing
monitoring device
balancing
laser module
Prior art date
Application number
PCT/DE2001/003790
Other languages
German (de)
French (fr)
Other versions
WO2002029940A2 (en
Inventor
Peter Heine
Original Assignee
Siemens Ag
Peter Heine
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 Siemens Ag, Peter Heine filed Critical Siemens Ag
Publication of WO2002029940A2 publication Critical patent/WO2002029940A2/en
Publication of WO2002029940A3 publication Critical patent/WO2002029940A3/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
    • H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
    • 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

Landscapes

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

Abstract

The invention relates to a device for verifying the transmission power of a transmitter laser module (7). The invention comprises a method and a calculation device for automatically calculating a balancing value and for converting said balancing value into a reference current value for monitoring the output power of a transmitter laser module (7). The invention can be used in a device for transmitting data using laser light.
PCT/DE2001/003790 2000-10-05 2001-10-01 Method and device for automatically balancing a laser monitoring device WO2002029940A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10049408 2000-10-05
DE10049408.0 2000-10-05

Publications (2)

Publication Number Publication Date
WO2002029940A2 WO2002029940A2 (en) 2002-04-11
WO2002029940A3 true WO2002029940A3 (en) 2003-08-07

Family

ID=7658815

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/003790 WO2002029940A2 (en) 2000-10-05 2001-10-01 Method and device for automatically balancing a laser monitoring device

Country Status (1)

Country Link
WO (1) WO2002029940A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004015619A1 (en) * 2004-03-30 2005-10-20 Siemens Ag Circuit arrangement for a photodiode
CN100427902C (en) * 2006-03-17 2008-10-22 中国科学院上海光学精密机械研究所 Power balance parameter measurement processing device and power balance method for multi-path laser system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761659A (en) * 1985-07-02 1988-08-02 Asahi Kogaku Kogyo Kabushiki Kaisha Temperature and aging compensated drive circuit in a semiconductor laser beam printer
US4868836A (en) * 1986-02-27 1989-09-19 Spectra-Physics, Inc. Laser diode power control and modulator circuit
US5640381A (en) * 1996-03-08 1997-06-17 International Business Machines Corporation Laser power-drive circuit having a scaling DAC supplying a scaled reference signal to a plurality of scaled DAC's that supply a plurality of scaled output signals
US5838488A (en) * 1996-06-06 1998-11-17 Nec Corporation Optical amplifier gain control circuitry using a variable reference corresponding to the number of multiplexed wavelengths

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4761659A (en) * 1985-07-02 1988-08-02 Asahi Kogaku Kogyo Kabushiki Kaisha Temperature and aging compensated drive circuit in a semiconductor laser beam printer
US4868836A (en) * 1986-02-27 1989-09-19 Spectra-Physics, Inc. Laser diode power control and modulator circuit
US5640381A (en) * 1996-03-08 1997-06-17 International Business Machines Corporation Laser power-drive circuit having a scaling DAC supplying a scaled reference signal to a plurality of scaled DAC's that supply a plurality of scaled output signals
US5838488A (en) * 1996-06-06 1998-11-17 Nec Corporation Optical amplifier gain control circuitry using a variable reference corresponding to the number of multiplexed wavelengths

Also Published As

Publication number Publication date
WO2002029940A2 (en) 2002-04-11

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