JPS62169486A - Semiconductor laser driving device - Google Patents

Semiconductor laser driving device

Info

Publication number
JPS62169486A
JPS62169486A JP61011320A JP1132086A JPS62169486A JP S62169486 A JPS62169486 A JP S62169486A JP 61011320 A JP61011320 A JP 61011320A JP 1132086 A JP1132086 A JP 1132086A JP S62169486 A JPS62169486 A JP S62169486A
Authority
JP
Japan
Prior art keywords
part
pulse
current
luminescence
output
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.)
Pending
Application number
JP61011320A
Inventor
Takao Funahashi
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Priority to JP61011320A priority Critical patent/JPS62169486A/en
Publication of JPS62169486A publication Critical patent/JPS62169486A/en
Application status is Pending legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01SDEVICES 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
    • H01S5/00Semiconductor lasers
    • H01S5/06Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068Stabilisation of laser output parameters
    • H01S5/0683Stabilisation of laser output parameters by monitoring the optical output parameters
    • H01S5/06835Stabilising during pulse modulation or generation

Abstract

PURPOSE:To always control the power level of an output pulse to be constant against fluctuations of a threshold value due to temperature change and fluctuations of an external differential quantum efficiency by subjecting the peak value of a laser luminescence to sample hold and feedback control. CONSTITUTION:A pulselike input current is inputted in a pulse driving part 2 through an input part 1 and a semiconductor laser 3 held in the vicinity of an oscillation (light) threshold value by a bias current 1b is pulsewise emitted by a pulse current 1p. The luminescence of the laser 3 is received and monitored by means of a photodiode 4, the output is amplified in a current amplifying part 5, a sampling hold part 8 performs sampling hold of the minimum value of the pulse of luminescence and the output keeps the bias current 1b at a constant value by feedback control via a D/C driving part 7. A sampling hold part 9 monitors the maximum value of the of luminescence, it is compared with a reference voltage Vref 12 in a pulse current control part 10, and by the output the pulse current of the pulse current driving part w is subjected to feedback control through a control terminal (c).
JP61011320A 1986-01-22 1986-01-22 Semiconductor laser driving device Pending JPS62169486A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61011320A JPS62169486A (en) 1986-01-22 1986-01-22 Semiconductor laser driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61011320A JPS62169486A (en) 1986-01-22 1986-01-22 Semiconductor laser driving device

Publications (1)

Publication Number Publication Date
JPS62169486A true JPS62169486A (en) 1987-07-25

Family

ID=11774730

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61011320A Pending JPS62169486A (en) 1986-01-22 1986-01-22 Semiconductor laser driving device

Country Status (1)

Country Link
JP (1) JPS62169486A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01258484A (en) * 1988-04-08 1989-10-16 Nippon Telegr & Teleph Corp <Ntt> Laser diode drive circuit
EP0683552A3 (en) * 1994-05-20 1996-05-01 Cselt Centro Studi Lab Telecom Method and device for controlling the peak power of a laser transmitter in discontinuous optical transmission systems.
EP0725462A1 (en) * 1995-02-02 1996-08-07 Siemens Aktiengesellschaft Two level laserdiode power control using a single control circuit
WO1996025781A1 (en) * 1995-02-14 1996-08-22 Linotype-Hell Ag Process and circuit arrangement for regulating the luminous power of laser diodes
WO1997011517A1 (en) * 1995-09-05 1997-03-27 Linotype-Hell Ag Method and device for triggering diode-pumped solid state lasers
WO2004107611A1 (en) * 2003-06-02 2004-12-09 Matsushita Electric Industrial Co., Ltd. Laser diode extinction ratio control method and circuit, integrated circuit, transmitter, and communication system
JPWO2014038338A1 (en) * 2012-09-06 2016-08-08 住友電気工業株式会社 Optical communication module, home equipment and light emitting device control method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01258484A (en) * 1988-04-08 1989-10-16 Nippon Telegr & Teleph Corp <Ntt> Laser diode drive circuit
EP0683552A3 (en) * 1994-05-20 1996-05-01 Cselt Centro Studi Lab Telecom Method and device for controlling the peak power of a laser transmitter in discontinuous optical transmission systems.
EP0725462A1 (en) * 1995-02-02 1996-08-07 Siemens Aktiengesellschaft Two level laserdiode power control using a single control circuit
WO1996025781A1 (en) * 1995-02-14 1996-08-22 Linotype-Hell Ag Process and circuit arrangement for regulating the luminous power of laser diodes
WO1997011517A1 (en) * 1995-09-05 1997-03-27 Linotype-Hell Ag Method and device for triggering diode-pumped solid state lasers
WO2004107611A1 (en) * 2003-06-02 2004-12-09 Matsushita Electric Industrial Co., Ltd. Laser diode extinction ratio control method and circuit, integrated circuit, transmitter, and communication system
JPWO2014038338A1 (en) * 2012-09-06 2016-08-08 住友電気工業株式会社 Optical communication module, home equipment and light emitting device control method

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