JPS62114469U - - Google Patents

Info

Publication number
JPS62114469U
JPS62114469U JP1985204551U JP20455185U JPS62114469U JP S62114469 U JPS62114469 U JP S62114469U JP 1985204551 U JP1985204551 U JP 1985204551U JP 20455185 U JP20455185 U JP 20455185U JP S62114469 U JPS62114469 U JP S62114469U
Authority
JP
Japan
Prior art keywords
light
circuit
amplitude
emitting element
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.)
Granted
Application number
JP1985204551U
Other languages
Japanese (ja)
Other versions
JPH0412701Y2 (en
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 filed Critical
Priority to JP1985204551U priority Critical patent/JPH0412701Y2/ja
Publication of JPS62114469U publication Critical patent/JPS62114469U/ja
Application granted granted Critical
Publication of JPH0412701Y2 publication Critical patent/JPH0412701Y2/ja
Expired legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの考案の一実施例の模式図、第２図
Ａ，Ｂは絶対値回路の動作説明のためのタイムチ
ヤート、第３図は半導体レーザの入力電流―光出
力特性図である。 １……受光回路、２……直流増幅回路、３……
絶対値回路、４……交流増幅回路、５，１０……
スイツチ、６……比較回路、７……基準信号発生
回路、８……加算回路、９……変調信号発生回路
、１１……駆動回路、１２……半導体レーザ、１
３……フオトダイオード。 FIG. 1 is a schematic diagram of an embodiment of this invention, FIGS. 2A and 2B are time charts for explaining the operation of the absolute value circuit, and FIG. 3 is a diagram of the input current-optical output characteristic of a semiconductor laser. 1... Light receiving circuit, 2... DC amplifier circuit, 3...
Absolute value circuit, 4... AC amplifier circuit, 5, 10...
Switch, 6... Comparison circuit, 7... Reference signal generation circuit, 8... Addition circuit, 9... Modulation signal generation circuit, 11... Drive circuit, 12... Semiconductor laser, 1
3...Photodiode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 発光素子と、該発光素子を駆動する駆動回路と
、該駆動回路に振幅変調信号を与える変調信号発
生回路と、上記発光素子からの光の一部を受光す
る受光素子と、該受光素子の出力の交流分を増幅
する交流増幅回路と、該交流増幅回路から出力さ
れる交流信号より振幅に対応する出力を得る回路
と、この振幅に対応する出力を上記駆動回路に帰
還して該振幅が一定になるように制御する制御回
路とからなる安定化光源装置。 A light-emitting element, a drive circuit that drives the light-emitting element, a modulation signal generation circuit that provides an amplitude modulation signal to the drive circuit, a light-receiving element that receives part of the light from the light-emitting element, and an output of the light-receiving element. an AC amplifier circuit that amplifies the AC component of the AC signal, a circuit that obtains an output corresponding to the amplitude from the AC signal output from the AC amplifier circuit, and an output corresponding to the amplitude that is fed back to the drive circuit to keep the amplitude constant. A stabilized light source device consisting of a control circuit that controls the
JP1985204551U 1985-12-31 1985-12-31 Expired JPH0412701Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985204551U JPH0412701Y2 (en) 1985-12-31 1985-12-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985204551U JPH0412701Y2 (en) 1985-12-31 1985-12-31

Publications (2)

Publication Number Publication Date
JPS62114469U true JPS62114469U (en) 1987-07-21
JPH0412701Y2 JPH0412701Y2 (en) 1992-03-26

Family

ID=31170554

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985204551U Expired JPH0412701Y2 (en) 1985-12-31 1985-12-31

Country Status (1)

Country Link
JP (1) JPH0412701Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005209759A (en) * 2004-01-21 2005-08-04 Matsushita Electric Ind Co Ltd Semiconductor laser heating device and laser processing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5451492A (en) * 1977-09-30 1979-04-23 Fujitsu Ltd Output stabilizing system for semiconductor laser
JPS54140886A (en) * 1978-04-25 1979-11-01 Fujitsu Ltd Photo-output stabilizing circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5451492A (en) * 1977-09-30 1979-04-23 Fujitsu Ltd Output stabilizing system for semiconductor laser
JPS54140886A (en) * 1978-04-25 1979-11-01 Fujitsu Ltd Photo-output stabilizing circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005209759A (en) * 2004-01-21 2005-08-04 Matsushita Electric Ind Co Ltd Semiconductor laser heating device and laser processing machine

Also Published As

Publication number Publication date
JPH0412701Y2 (en) 1992-03-26

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