JPS58106962U - Laser diode drive circuit - Google Patents

Laser diode drive circuit

Info

Publication number
JPS58106962U
JPS58106962U JP271382U JP271382U JPS58106962U JP S58106962 U JPS58106962 U JP S58106962U JP 271382 U JP271382 U JP 271382U JP 271382 U JP271382 U JP 271382U JP S58106962 U JPS58106962 U JP S58106962U
Authority
JP
Japan
Prior art keywords
laser diode
drive circuit
diode drive
circuit
bias current
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
JP271382U
Other languages
Japanese (ja)
Other versions
JPH0132372Y2 (en
Inventor
友杉　民夫
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP271382U priority Critical patent/JPS58106962U/en
Publication of JPS58106962U publication Critical patent/JPS58106962U/en
Application granted granted Critical
Publication of JPH0132372Y2 publication Critical patent/JPH0132372Y2/ja
Granted legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は従来のＩＣ化されたレーザーダイオード駆動回
路の一例を示す回路図、第２図は本考案の一実施例を示
す回路図、第３図は本考案の他の実施例を示す回路図で
ある。 図において、１・・・・・・レーザーダイオード、２・
・・・・・自動電力制御回路、３，３′・・・・・・Ｉ
Ｃ化されたレーザーダイオード駆動回路、４・・・・・
・外部直流バイアス供給回路、Ｔ？〜Ｔ６・・・・・・
トランジスタ、ｉ？〜ｉ３・・・・・・定電流回路。Fig. 1 is a circuit diagram showing an example of a conventional IC laser diode drive circuit, Fig. 2 is a circuit diagram showing an embodiment of the present invention, and Fig. 3 is a circuit diagram showing another embodiment of the present invention. It is a diagram. In the figure, 1... laser diode, 2...
...Automatic power control circuit, 3,3'...I
C-based laser diode drive circuit, 4...
・External DC bias supply circuit, T? ~T6・・・・・・
Transistor, i? ~i3... Constant current circuit.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）レーザーダイオードにパルス電流又はパルス電流
とバイアス電流を供給する集積回路化されたレーザーダ
イオード駆動回路！こおいて、該駆動回路の外部に並列
に接続され可変の定電流回路を含む外部直流バイアス電
流供給回路を備えたことを特徴とするレーザーダイオー
ド駆動回路。(1) An integrated laser diode drive circuit that supplies pulse current or pulse current and bias current to the laser diode! A laser diode drive circuit comprising: an external DC bias current supply circuit connected in parallel to the outside of the drive circuit and including a variable constant current circuit. （２）実用新案登録請求の範囲第１項記載のレーザーダ
イオード駆動回路において、前記外部直流バイアス電流
供給回路は、自動電力制御回路の出力によってバイアス
電流が制御される二七を特徴とするもの。(2) Utility Model Registration The laser diode drive circuit according to claim 1, wherein the external DC bias current supply circuit has a bias current controlled by an output of an automatic power control circuit.
JP271382U 1982-01-14 1982-01-14 Laser diode drive circuit Granted JPS58106962U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP271382U JPS58106962U (en) 1982-01-14 1982-01-14 Laser diode drive circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP271382U JPS58106962U (en) 1982-01-14 1982-01-14 Laser diode drive circuit

Publications (2)

Publication Number Publication Date
JPS58106962U true JPS58106962U (en) 1983-07-21
JPH0132372Y2 JPH0132372Y2 (en) 1989-10-03

Family

ID=30015675

Family Applications (1)

Application Number Title Priority Date Filing Date
JP271382U Granted JPS58106962U (en) 1982-01-14 1982-01-14 Laser diode drive circuit

Country Status (1)

Country Link
JP (1) JPS58106962U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60145680A (en) * 1984-01-10 1985-08-01 Fujitsu Ltd Laser diode driving circuit
WO2014045440A1 (en) * 2012-09-24 2014-03-27 株式会社島津製作所 Semiconductor laser driving circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60145680A (en) * 1984-01-10 1985-08-01 Fujitsu Ltd Laser diode driving circuit
WO2014045440A1 (en) * 2012-09-24 2014-03-27 株式会社島津製作所 Semiconductor laser driving circuit

Also Published As

Publication number Publication date
JPH0132372Y2 (en) 1989-10-03

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