JPS5624991A - Driving circuit for pulse laser diode - Google Patents

Driving circuit for pulse laser diode

Info

Publication number
JPS5624991A
JPS5624991A JP10030179A JP10030179A JPS5624991A JP S5624991 A JPS5624991 A JP S5624991A JP 10030179 A JP10030179 A JP 10030179A JP 10030179 A JP10030179 A JP 10030179A JP S5624991 A JPS5624991 A JP S5624991A
Authority
JP
Japan
Prior art keywords
emitter
laser diode
base
transistor
pulse laser
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
JP10030179A
Other languages
Japanese (ja)
Inventor
Reikichi Tsunoda
Shigehisa Hoshino
Masamitsu Saito
Toshio Takei
Toyohiro Takimoto
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.)
Technical Research and Development Institute of Japan Defence Agency
Original Assignee
Technical Research and Development Institute of Japan Defence Agency
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 Technical Research and Development Institute of Japan Defence Agency filed Critical Technical Research and Development Institute of Japan Defence Agency
Priority to JP10030179A priority Critical patent/JPS5624991A/en
Publication of JPS5624991A publication Critical patent/JPS5624991A/en
Pending 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
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042—Electrical excitation ; Circuits therefor

Landscapes

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

Abstract

PURPOSE:To contrive the increase in the applied voltage of th pulse laser diode driving circuit and the improvement in the efficiency thereof by connecting the base and the emitter of a switching transistor by an inductor. CONSTITUTION:A capacitor 2 is charged by a voltage VH through a resistor 7 and a diode 5, and stored charge of the capacitor 2 is supplied to the laser diode 3 through the switching operation of the transistor 1 formed with the inductor 10 between the base and the emitter thereof. In this configuration the base and the emitter of the transistor is shortcircuited in DC and is high impedance in AC. Accordingly, in case that there is no trigger pulse 9 thereat, it is raised to collector maximum allowable voltage, and when the trigger pulse is inputted through the capacitor 6, the leakage from the base to the emitter is reduced to obtain sufficient base current. Therefore, the impedance between the collector and the emitter of the transistor is lowered at the time of ON so as to lower the impedance of the discharging loop. Thus, there can drive a pulse laser diode stably and efficiently.
JP10030179A 1979-08-08 1979-08-08 Driving circuit for pulse laser diode Pending JPS5624991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10030179A JPS5624991A (en) 1979-08-08 1979-08-08 Driving circuit for pulse laser diode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10030179A JPS5624991A (en) 1979-08-08 1979-08-08 Driving circuit for pulse laser diode

Publications (1)

Publication Number Publication Date
JPS5624991A true JPS5624991A (en) 1981-03-10

Family

ID=14270340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10030179A Pending JPS5624991A (en) 1979-08-08 1979-08-08 Driving circuit for pulse laser diode

Country Status (1)

Country Link
JP (1) JPS5624991A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819241A (en) * 1985-08-16 1989-04-04 Kabushiki Kaisha Toshiba Laser diode driving circuit
US4856011A (en) * 1985-01-30 1989-08-08 Ricoh Company, Ltd. Semiconductor laser control circuit
WO2002017451A1 (en) * 2000-08-22 2002-02-28 Osram Opto Semiconductors Gmbh Laser module comprising a drive circuit
EP1289081A1 (en) * 2001-09-03 2003-03-05 Agilent Technologies, Inc. (a Delaware corporation) Laser driver circuit and method of driving a laser therewith
WO2009132631A1 (en) * 2008-04-30 2009-11-05 Jenoptik Laser, Optik, Systeme Gmbh Laser and method for producing pulsed laser radiation
JP2016152336A (en) * 2015-02-18 2016-08-22 株式会社豊田中央研究所 Laser diode driving circuit and laser radar device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4856011A (en) * 1985-01-30 1989-08-08 Ricoh Company, Ltd. Semiconductor laser control circuit
US4819241A (en) * 1985-08-16 1989-04-04 Kabushiki Kaisha Toshiba Laser diode driving circuit
WO2002017451A1 (en) * 2000-08-22 2002-02-28 Osram Opto Semiconductors Gmbh Laser module comprising a drive circuit
EP1289081A1 (en) * 2001-09-03 2003-03-05 Agilent Technologies, Inc. (a Delaware corporation) Laser driver circuit and method of driving a laser therewith
US6778571B2 (en) 2001-09-03 2004-08-17 Agilent Technologies, Inc. Laser driver circuit
WO2009132631A1 (en) * 2008-04-30 2009-11-05 Jenoptik Laser, Optik, Systeme Gmbh Laser and method for producing pulsed laser radiation
JP2016152336A (en) * 2015-02-18 2016-08-22 株式会社豊田中央研究所 Laser diode driving circuit and laser radar device

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