JPS6430034A - Semiconductor laser driver - Google Patents
Semiconductor laser driverInfo
- Publication number
- JPS6430034A JPS6430034A JP62184717A JP18471787A JPS6430034A JP S6430034 A JPS6430034 A JP S6430034A JP 62184717 A JP62184717 A JP 62184717A JP 18471787 A JP18471787 A JP 18471787A JP S6430034 A JPS6430034 A JP S6430034A
- Authority
- JP
- Japan
- Prior art keywords
- semiconductor laser
- photodiode
- light radiated
- laser
- light
- 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
Landscapes
- Semiconductor Lasers (AREA)
- Optical Head (AREA)
Abstract
PURPOSE:To obtain the stable quantity of light radiated from a laser independently of return light by arranging a photodiode in front of a semiconductor laser chip and monitoring the quantity of light radiated from the laser. CONSTITUTION:The photodiode 9 for monitoring light radiated from the laser is arranged between the semiconductor laser chip 1 and a coupling lens 3 and the photodiode 9 has structure to be held by mounting it on a circuit substrate 15 whose position can be finely adjusted. Negative feedback from the semiconductor laser to a driving circuit 11 is applied by the photodiode 9. Consequently, the quantity of light radiated from the semiconductor laser can be stabilized, reflected light or the like on the surface of the photodiode 9 does not exert bad influence upon the optical system and the whole device can be miniaturized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184717A JPS6430034A (en) | 1987-07-24 | 1987-07-24 | Semiconductor laser driver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184717A JPS6430034A (en) | 1987-07-24 | 1987-07-24 | Semiconductor laser driver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6430034A true JPS6430034A (en) | 1989-01-31 |
Family
ID=16158132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62184717A Pending JPS6430034A (en) | 1987-07-24 | 1987-07-24 | Semiconductor laser driver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6430034A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5422900A (en) * | 1994-04-28 | 1995-06-06 | Eastman Kodak Company | Integrated laser module |
WO1998035411A1 (en) * | 1997-02-07 | 1998-08-13 | Coherent, Inc. | Laser diode integrating enclosure and detector |
US6027256A (en) * | 1997-02-07 | 2000-02-22 | Coherent, Inc. | Composite laser diode enclosure and method for making the same |
US7009692B2 (en) | 1999-08-06 | 2006-03-07 | Lumenis Inc. | Arrangement for monitoring the power delivery of a photon channeling element |
WO2016076105A1 (en) * | 2014-11-13 | 2016-05-19 | 住友電気工業株式会社 | Light module |
WO2019065162A1 (en) * | 2017-09-29 | 2019-04-04 | 住友電気工業株式会社 | Optical module |
-
1987
- 1987-07-24 JP JP62184717A patent/JPS6430034A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5422900A (en) * | 1994-04-28 | 1995-06-06 | Eastman Kodak Company | Integrated laser module |
WO1998035411A1 (en) * | 1997-02-07 | 1998-08-13 | Coherent, Inc. | Laser diode integrating enclosure and detector |
US6027256A (en) * | 1997-02-07 | 2000-02-22 | Coherent, Inc. | Composite laser diode enclosure and method for making the same |
US6061374A (en) * | 1997-02-07 | 2000-05-09 | Coherent, Inc. | Laser diode integrating enclosure and detector |
US7009692B2 (en) | 1999-08-06 | 2006-03-07 | Lumenis Inc. | Arrangement for monitoring the power delivery of a photon channeling element |
WO2016076105A1 (en) * | 2014-11-13 | 2016-05-19 | 住友電気工業株式会社 | Light module |
JP2016096219A (en) * | 2014-11-13 | 2016-05-26 | 住友電気工業株式会社 | Optical module |
WO2019065162A1 (en) * | 2017-09-29 | 2019-04-04 | 住友電気工業株式会社 | Optical module |
JPWO2019065162A1 (en) * | 2017-09-29 | 2020-10-22 | 住友電気工業株式会社 | Optical module |
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