JPS6243351B2 - - Google Patents
Info
- Publication number
- JPS6243351B2 JPS6243351B2 JP55048416A JP4841680A JPS6243351B2 JP S6243351 B2 JPS6243351 B2 JP S6243351B2 JP 55048416 A JP55048416 A JP 55048416A JP 4841680 A JP4841680 A JP 4841680A JP S6243351 B2 JPS6243351 B2 JP S6243351B2
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor laser
- circuit
- current
- power supply
- constant 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.)
- Expired
Links
- 239000004065 semiconductor Substances 0.000 claims description 40
- 238000001514 detection method Methods 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/068—Stabilisation of laser output parameters
- H01S5/06825—Protecting the laser, e.g. during switch-on/off, detection of malfunctioning or degradation
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Semiconductor Lasers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4841680A JPS56144590A (en) | 1980-04-13 | 1980-04-13 | Driving device for semiconductor laser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4841680A JPS56144590A (en) | 1980-04-13 | 1980-04-13 | Driving device for semiconductor laser |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56144590A JPS56144590A (en) | 1981-11-10 |
JPS6243351B2 true JPS6243351B2 (es) | 1987-09-12 |
Family
ID=12802697
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4841680A Granted JPS56144590A (en) | 1980-04-13 | 1980-04-13 | Driving device for semiconductor laser |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56144590A (es) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61265883A (ja) * | 1985-05-20 | 1986-11-25 | Olympus Optical Co Ltd | 半導体レ−ザ駆動装置 |
JPS6242585A (ja) * | 1985-08-20 | 1987-02-24 | Matsushita Electric Ind Co Ltd | 半導体レ−ザ保護回路 |
JPH0330130A (ja) * | 1989-06-28 | 1991-02-08 | Sharp Corp | 半導体レーザ駆動回路 |
-
1980
- 1980-04-13 JP JP4841680A patent/JPS56144590A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS56144590A (en) | 1981-11-10 |
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