JPS6280364U - - Google Patents
Info
- Publication number
- JPS6280364U JPS6280364U JP17315285U JP17315285U JPS6280364U JP S6280364 U JPS6280364 U JP S6280364U JP 17315285 U JP17315285 U JP 17315285U JP 17315285 U JP17315285 U JP 17315285U JP S6280364 U JPS6280364 U JP S6280364U
- Authority
- JP
- Japan
- Prior art keywords
- control transistor
- laser diode
- photodiode
- control
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000006641 stabilisation Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 1
Description
図は本考案に係るレーザダイオードの光出力安
定化回路を示す。
Ｄ１……レーザダイオード、Ｄ２……フオトダ
イオード、Ｑ１，Ｑ２……制御トランジスタ、Ｖ
Ｒ……可変抵抗器、Ｄ３……基準電圧を設定する
為のツエナーダイオード。
The figure shows a laser diode optical output stabilization circuit according to the present invention. D 1 ... Laser diode, D 2 ... Photo diode, Q 1 , Q 2 ... Control transistor, V
R...Variable resistor, D3 ...Zener diode for setting the reference voltage.
Claims (1)
直列接続された第１制御トランジスタと、前記レ
ーザダイオードより出力されるレーザ光をモニタ
ーする為のフオトダイオードと、前記フオトダイ
オードに流れる電流に基いて制御され、且つその
出力が前記第１制御トランジスタの制御入力とし
て印加される第２制御トランジスタと、前記第２
制御トランジスタに対して印加される基準電圧を
可変する為の可変抵抗器とよりなるレーザダイオ
ードの光出力安定化回路。 a laser diode, a first control transistor connected in series with the laser diode, a photodiode for monitoring the laser light output from the laser diode, and a control transistor that is controlled based on the current flowing through the photodiode; a second control transistor whose output is applied as a control input of the first control transistor;
A laser diode optical output stabilization circuit consisting of a variable resistor to vary the reference voltage applied to the control transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17315285U JPS6280364U (en) | 1985-11-11 | 1985-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17315285U JPS6280364U (en) | 1985-11-11 | 1985-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6280364U true JPS6280364U (en) | 1987-05-22 |
Family
ID=31110344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17315285U Pending JPS6280364U (en) | 1985-11-11 | 1985-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6280364U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5994891A (en) * | 1982-11-24 | 1984-05-31 | Hitachi Ltd | Semiconductor laser device |
| JPS60167389A (en) * | 1984-02-09 | 1985-08-30 | Mitsubishi Electric Corp | Stabilizer for intensity of projecting beam from semiconductor laser |
-
1985
- 1985-11-11 JP JP17315285U patent/JPS6280364U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5994891A (en) * | 1982-11-24 | 1984-05-31 | Hitachi Ltd | Semiconductor laser device |
| JPS60167389A (en) * | 1984-02-09 | 1985-08-30 | Mitsubishi Electric Corp | Stabilizer for intensity of projecting beam from semiconductor laser |