JPS6427289A - Semiconductor device - Google Patents
Semiconductor deviceInfo
- Publication number
- JPS6427289A JPS6427289A JP62184363A JP18436387A JPS6427289A JP S6427289 A JPS6427289 A JP S6427289A JP 62184363 A JP62184363 A JP 62184363A JP 18436387 A JP18436387 A JP 18436387A JP S6427289 A JPS6427289 A JP S6427289A
- Authority
- JP
- Japan
- Prior art keywords
- laser element
- light flux
- semiconductor laser
- photodetector
- viewed
- 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 prevent turbulence in focus error signals, by providing a servo photodetector so as to be oriented at an approximately right angle to light flux emitted by a semiconductor laser element when viewed from the laser element. CONSTITUTION:A monitoring photodetector 3 is formed on the same plane of a semiconductor substrate 1 on which a semiconductor laser element 2 is mounted, and at the position where light flux from the laser element is incident. A servo photodetector 4 is also provided on the same plane so as to be oriented at approximately 90 degrees to the light flux from the semiconductor laser element 2 when viewed from the laser element. According to such arrangement, no light flux from the semiconductor laser element is directly incident on the servo photodetector and hence no turbulence is caused in signal light.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184363A JPS6427289A (en) | 1987-07-22 | 1987-07-22 | Semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62184363A JPS6427289A (en) | 1987-07-22 | 1987-07-22 | Semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6427289A true JPS6427289A (en) | 1989-01-30 |
Family
ID=16151924
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62184363A Pending JPS6427289A (en) | 1987-07-22 | 1987-07-22 | Semiconductor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6427289A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0252487A (en) * | 1988-06-30 | 1990-02-22 | Pencom Internatl Corp | Hybrid device having surface emission laser and photodetector |
JPH05197999A (en) * | 1991-09-18 | 1993-08-06 | Nec Corp | Optical recording and reproducing device and production thereof |
JP2012160489A (en) * | 2011-01-28 | 2012-08-23 | Kyocera Chemical Corp | Manufacturing method of electronic component |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61225886A (en) * | 1985-03-29 | 1986-10-07 | Sony Corp | Semiconductor laser device |
-
1987
- 1987-07-22 JP JP62184363A patent/JPS6427289A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61225886A (en) * | 1985-03-29 | 1986-10-07 | Sony Corp | Semiconductor laser device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0252487A (en) * | 1988-06-30 | 1990-02-22 | Pencom Internatl Corp | Hybrid device having surface emission laser and photodetector |
JPH05197999A (en) * | 1991-09-18 | 1993-08-06 | Nec Corp | Optical recording and reproducing device and production thereof |
JP2012160489A (en) * | 2011-01-28 | 2012-08-23 | Kyocera Chemical Corp | Manufacturing method of electronic component |
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