FR2448274A1 - Dispositif d'alimentation de source lumineuse a semi-conducteur et generateur de lumiere comportant un tel dispositif - Google Patents

Dispositif d'alimentation de source lumineuse a semi-conducteur et generateur de lumiere comportant un tel dispositif

Info

Publication number
FR2448274A1
FR2448274A1 FR7902764A FR7902764A FR2448274A1 FR 2448274 A1 FR2448274 A1 FR 2448274A1 FR 7902764 A FR7902764 A FR 7902764A FR 7902764 A FR7902764 A FR 7902764A FR 2448274 A1 FR2448274 A1 FR 2448274A1
Authority
FR
France
Prior art keywords
control
transistor
loop
photocurrent
led
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
FR7902764A
Other languages
English (en)
French (fr)
Other versions
FR2448274B1 (ko
Inventor
Claude Claverie
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7902764A priority Critical patent/FR2448274A1/fr
Publication of FR2448274A1 publication Critical patent/FR2448274A1/fr
Application granted granted Critical
Publication of FR2448274B1 publication Critical patent/FR2448274B1/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
    • H01S5/0683—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
    • H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/504—Laser transmitters using direct modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/564—Power control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Semiconductor Lasers (AREA)
  • Led Devices (AREA)
FR7902764A 1979-02-02 1979-02-02 Dispositif d'alimentation de source lumineuse a semi-conducteur et generateur de lumiere comportant un tel dispositif Granted FR2448274A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7902764A FR2448274A1 (fr) 1979-02-02 1979-02-02 Dispositif d'alimentation de source lumineuse a semi-conducteur et generateur de lumiere comportant un tel dispositif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7902764A FR2448274A1 (fr) 1979-02-02 1979-02-02 Dispositif d'alimentation de source lumineuse a semi-conducteur et generateur de lumiere comportant un tel dispositif

Publications (2)

Publication Number Publication Date
FR2448274A1 true FR2448274A1 (fr) 1980-08-29
FR2448274B1 FR2448274B1 (ko) 1982-10-01

Family

ID=9221549

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7902764A Granted FR2448274A1 (fr) 1979-02-02 1979-02-02 Dispositif d'alimentation de source lumineuse a semi-conducteur et generateur de lumiere comportant un tel dispositif

Country Status (1)

Country Link
FR (1) FR2448274A1 (ko)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052536A1 (fr) * 1980-11-14 1982-05-26 Lignes Telegraphiques Et Telephoniques L.T.T. Dispositif de stabilisation de la puissance de sortie d'un module émetteur pour système de transmission sur fibre optique
FR2495870A1 (fr) * 1980-12-09 1982-06-11 Thomson Csf Dispositif de protection d'une diode laser
FR2524230A1 (fr) * 1982-03-26 1983-09-30 Lignes Telegraph Telephon Systeme de transmission d'informations sur une voie de service du type fibre optique
EP0125823A1 (en) * 1983-04-28 1984-11-21 Kabushiki Kaisha Toshiba Driving apparatus for stabilizing burst light output
EP0237922A2 (de) * 1986-03-18 1987-09-23 Alcatel SEL Aktiengesellschaft Verfahren zur Regelung der optischen Leistung eines Lasers und Schaltung zur Ausübung des Verfahrens

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009385A (en) * 1976-03-22 1977-02-22 Bell Telephone Laboratories, Incorporated Laser control circuit
FR2353198A1 (fr) * 1976-05-25 1977-12-23 Fujitsu Ltd Dispositif de commande d'un element photo-emissif
US4109217A (en) * 1976-12-10 1978-08-22 Bell Telephone Laboratories, Incorporated Stabilization circuit for junction lasers
FR2386165A1 (fr) * 1977-03-29 1978-10-27 Post Office Dispositif de stabilisation des caracteristiques d'un laser

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4009385A (en) * 1976-03-22 1977-02-22 Bell Telephone Laboratories, Incorporated Laser control circuit
FR2353198A1 (fr) * 1976-05-25 1977-12-23 Fujitsu Ltd Dispositif de commande d'un element photo-emissif
US4109217A (en) * 1976-12-10 1978-08-22 Bell Telephone Laboratories, Incorporated Stabilization circuit for junction lasers
FR2386165A1 (fr) * 1977-03-29 1978-10-27 Post Office Dispositif de stabilisation des caracteristiques d'un laser

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052536A1 (fr) * 1980-11-14 1982-05-26 Lignes Telegraphiques Et Telephoniques L.T.T. Dispositif de stabilisation de la puissance de sortie d'un module émetteur pour système de transmission sur fibre optique
FR2495870A1 (fr) * 1980-12-09 1982-06-11 Thomson Csf Dispositif de protection d'une diode laser
EP0053974A1 (fr) * 1980-12-09 1982-06-16 Thomson-Csf Dispositif de protection d'une diode laser
US4488305A (en) * 1980-12-09 1984-12-11 Thomson-Csf Protection device for a laser diode
FR2524230A1 (fr) * 1982-03-26 1983-09-30 Lignes Telegraph Telephon Systeme de transmission d'informations sur une voie de service du type fibre optique
EP0125823A1 (en) * 1983-04-28 1984-11-21 Kabushiki Kaisha Toshiba Driving apparatus for stabilizing burst light output
US4621376A (en) * 1983-04-28 1986-11-04 Kabushiki Kaisha Toshiba Driving apparatus for stabilizing burst light output
EP0237922A2 (de) * 1986-03-18 1987-09-23 Alcatel SEL Aktiengesellschaft Verfahren zur Regelung der optischen Leistung eines Lasers und Schaltung zur Ausübung des Verfahrens
EP0237922A3 (de) * 1986-03-18 1991-02-27 Alcatel SEL Aktiengesellschaft Verfahren zur Regelung der optischen Leistung eines Lasers und Schaltung zur Ausübung des Verfahrens

Also Published As

Publication number Publication date
FR2448274B1 (ko) 1982-10-01

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Legal Events

Date Code Title Description
ST Notification of lapse