JPS5792883A - Semiconductor laser driving circuit - Google Patents

Semiconductor laser driving circuit

Info

Publication number
JPS5792883A
JPS5792883A JP55170156A JP17015680A JPS5792883A JP S5792883 A JPS5792883 A JP S5792883A JP 55170156 A JP55170156 A JP 55170156A JP 17015680 A JP17015680 A JP 17015680A JP S5792883 A JPS5792883 A JP S5792883A
Authority
JP
Japan
Prior art keywords
semiconductor laser
laser beam
transmission signal
waveform
resistor
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
JP55170156A
Other languages
Japanese (ja)
Other versions
JPS6248398B2 (en
Inventor
Kenichi Sato
Koichi Asatani
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP55170156A priority Critical patent/JPS5792883A/en
Publication of JPS5792883A publication Critical patent/JPS5792883A/en
Publication of JPS6248398B2 publication Critical patent/JPS6248398B2/ja
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
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042—Electrical excitation ; Circuits therefor

Abstract

PURPOSE:To drive a semiconductor laser beam with fidelity in accordance with a waveform of a transmission signal by a method wherein a laser beam spectrum is divided into a plurality of beams, while each thereof is provided with an interference property remarkably lower than the semiconductor laser beam. CONSTITUTION:Collector of transistors (TR) 21, 22 are connected to a source terminal 25 through a resistor 23 and a semiconductor laser 24 respectively. A common emitter output terminal of the TR21, 22 is connected to on output terminal 27 through a current stabilizing circuit 48 which is composed of a TR26 and a resistor 28 connected in series. The bases of the TR21, 22 are connected to the respective junctions of DC bias circuits 32, 33 and 29, 30 which are connected between the terminals 25, 27. A transmission signal input terminal 46 is introduced out of the base of the TR26 which composes the current stabilizing circuit 48 and a switching high frequency signal input terminal 39 is introduced out of the base of the TR21. With the above embodiment, the laser beam can be drivin with high fidelity in accordance with the waveform of the transmission signal.
JP55170156A 1980-12-01 1980-12-01 Semiconductor laser driving circuit Granted JPS5792883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55170156A JPS5792883A (en) 1980-12-01 1980-12-01 Semiconductor laser driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55170156A JPS5792883A (en) 1980-12-01 1980-12-01 Semiconductor laser driving circuit

Publications (2)

Publication Number Publication Date
JPS5792883A true JPS5792883A (en) 1982-06-09
JPS6248398B2 JPS6248398B2 (en) 1987-10-13

Family

ID=15899714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55170156A Granted JPS5792883A (en) 1980-12-01 1980-12-01 Semiconductor laser driving circuit

Country Status (1)

Country Link
JP (1) JPS5792883A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61214492A (en) * 1985-03-18 1986-09-24 Nippon Telegr & Teleph Corp <Ntt> Driving method for semiconductor laser
JPH08186312A (en) * 1994-12-30 1996-07-16 Sony Corp Laser diode drive circuit
JP2014189381A (en) * 2013-03-28 2014-10-06 Fujitec Co Ltd Renewal method for passenger conveyor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61214492A (en) * 1985-03-18 1986-09-24 Nippon Telegr & Teleph Corp <Ntt> Driving method for semiconductor laser
JPH08186312A (en) * 1994-12-30 1996-07-16 Sony Corp Laser diode drive circuit
JP2014189381A (en) * 2013-03-28 2014-10-06 Fujitec Co Ltd Renewal method for passenger conveyor

Also Published As

Publication number Publication date
JPS6248398B2 (en) 1987-10-13

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