FR2452807A1 - LIMITING CIRCUIT FOR SEMICONDUCTOR LASER - Google Patents

LIMITING CIRCUIT FOR SEMICONDUCTOR LASER

Info

Publication number
FR2452807A1
FR2452807A1 FR8003734A FR8003734A FR2452807A1 FR 2452807 A1 FR2452807 A1 FR 2452807A1 FR 8003734 A FR8003734 A FR 8003734A FR 8003734 A FR8003734 A FR 8003734A FR 2452807 A1 FR2452807 A1 FR 2452807A1
Authority
FR
France
Prior art keywords
semiconductor laser
limiting circuit
circuit
setpoint
value
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.)
Granted
Application number
FR8003734A
Other languages
French (fr)
Other versions
FR2452807B3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2452807A1 publication Critical patent/FR2452807A1/en
Application granted granted Critical
Publication of FR2452807B3 publication Critical patent/FR2452807B3/fr
Granted legal-status Critical Current

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

Abstract

A.CIRCUIT LIMITEUR POUR LASER A SEMI-CONDUCTEUR, DONT L'INTENSITE EST REGULEE PAR UN AMPLIFICATEUR DE REGULATION SELON UNE COMPARAISON VALEUR DE CONSIGNEVALEUR REELLE. B.CIRCUIT LIMITEUR CARACTERISE EN CE QU'ENTRE L'ENTREE DE L'AMPLIFICATEUR DE REGULATION 13 ET LE DISPOSITIF D'INSCRIPTION DE LA VALEUR DE CONSIGNE 7 SONT DISPOSES UN CIRCUIT DE MESURE D'INTENSITE QUI MESURE LA VALEUR REELLE 7 ET UN CIRCUIT A VALEUR DE SEUIL 8. C.L'INVENTION S'APPLIQUE NOTAMMENT A DES SYSTEMES DE TRANSMISSION PAR FIBRES OPTIQUES.A. LIMITER CIRCUIT FOR SEMICONDUCTOR LASER, THE INTENSITY OF WHICH IS REGULATED BY A REGULATION AMPLIFIER ACCORDING TO A COMPARISON OF THE SETPOINT VALUE. B. LIMITER CIRCUIT CHARACTERIZED IN THAT THE INPUT OF THE REGULATION AMPLIFIER 13 AND THE SETPOINT ENTRY DEVICE 7 ARE PROVIDED WITH A CURRENT MEASURING CIRCUIT WHICH MEASURES THE ACTUAL VALUE 7 AND A CIRCUIT A THRESHOLD VALUE 8. C. THE INVENTION APPLIES IN PARTICULAR TO TRANSMISSION SYSTEMS BY OPTICAL FIBERS.

FR8003734A 1979-03-26 1980-02-20 LIMITING CIRCUIT FOR SEMICONDUCTOR LASER Granted FR2452807A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792911858 DE2911858C2 (en) 1979-03-26 1979-03-26 Circuit for limiting the light output emitted by a semiconductor laser

Publications (2)

Publication Number Publication Date
FR2452807A1 true FR2452807A1 (en) 1980-10-24
FR2452807B3 FR2452807B3 (en) 1981-12-11

Family

ID=6066465

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8003734A Granted FR2452807A1 (en) 1979-03-26 1980-02-20 LIMITING CIRCUIT FOR SEMICONDUCTOR LASER

Country Status (4)

Country Link
JP (1) JPS55130190A (en)
DE (1) DE2911858C2 (en)
FR (1) FR2452807A1 (en)
GB (1) GB2045516B (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8005153A (en) * 1980-09-15 1982-04-01 Philips Nv DEVICE FOR MODULATING THE OUTPUT SIGNAL OF A CONVERTER, FOR EXAMPLE, AN ELECTRO-OPTICAL CONVERTER.
JPS583297A (en) * 1981-06-29 1983-01-10 Fujitsu Ltd Driving system for laser
US4484331A (en) * 1981-07-20 1984-11-20 Rca Corporation Regulator for bias current of semiconductor laser diode
DE3308987A1 (en) * 1983-03-14 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Circuit arrangement with an optical transmitter
DE3325420A1 (en) * 1983-07-14 1985-01-31 Telefunken electronic GmbH, 7100 Heilbronn CIRCUIT ARRANGEMENT FOR CONTROLLING SEMICONDUCTOR LASERS
DE3331132C1 (en) * 1983-08-30 1985-02-07 Hewlett-Packard GmbH, 7030 Böblingen Protection circuit for a semiconductor laser
HUT39871A (en) * 1985-02-19 1986-10-29 Videoton Elekt Vallalat Method for measuring the temperature of semiconductor laser diode and circuit arrangement for carrying out thereof
JPS62116570U (en) * 1986-01-16 1987-07-24
US4791632A (en) * 1987-01-09 1988-12-13 Sperry Corporation Compensated laser diode transmitter
DE3706572A1 (en) * 1987-02-28 1988-09-08 Philips Patentverwaltung CONTROL OF LASER DIODES
DE3726243A1 (en) * 1987-08-07 1989-02-16 Kabelmetal Electro Gmbh Circuit arrangement for regulating the power of a laser diode
ATE120589T1 (en) * 1989-01-17 1995-04-15 Siemens Ag LASER DIODE TRANSMITTER WITH PROTECTION AND ALARM CIRCUIT.
JP2546080B2 (en) * 1991-05-10 1996-10-23 富士通株式会社 Semiconductor laser control device
EP0746888A1 (en) * 1994-12-23 1996-12-11 Koninklijke Philips Electronics N.V. Laser power supply circuit as well as optical recording and/or reading device comprising such a laser power supply circuit
US5953690A (en) * 1996-07-01 1999-09-14 Pacific Fiberoptics, Inc. Intelligent fiberoptic receivers and method of operating and manufacturing the same
DE102012022053B4 (en) 2012-10-02 2023-04-13 Balluff Gmbh Circuit arrangement for operating a laser diode

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3946335A (en) * 1975-02-18 1976-03-23 Bell Telephone Laboratories, Incorporated Stabilization circuit for radiation emitting diodes
JPS53116794A (en) * 1977-03-23 1978-10-12 Mitsubishi Electric Corp Laser device for optical communication
DE2736966A1 (en) * 1977-08-17 1979-03-01 Standard Elektrik Lorenz Ag TRANSMITTER FOR OPTICAL RADIATION

Also Published As

Publication number Publication date
GB2045516A (en) 1980-10-29
GB2045516B (en) 1983-03-16
JPS55130190A (en) 1980-10-08
FR2452807B3 (en) 1981-12-11
DE2911858C2 (en) 1983-01-13
DE2911858A1 (en) 1980-10-02

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