JPS6424486A - Semiconductor laser module - Google Patents
Semiconductor laser moduleInfo
- Publication number
- JPS6424486A JPS6424486A JP18054087A JP18054087A JPS6424486A JP S6424486 A JPS6424486 A JP S6424486A JP 18054087 A JP18054087 A JP 18054087A JP 18054087 A JP18054087 A JP 18054087A JP S6424486 A JPS6424486 A JP S6424486A
- Authority
- JP
- Japan
- Prior art keywords
- fixed
- chip
- lens
- face
- effect device
- 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
- Optical Couplings Of Light Guides (AREA)
- Semiconductor Lasers (AREA)
Abstract
PURPOSE:To keep a light coupling efficiency constant independently of the formal change of a Peltier effect device by a method wherein a lens of the lens system nearest a semiconductor laser (LD) chip is provided in the LD chip in one piece, where the lens and the LD chip are fixed to the Peltier effect device. CONSTITUTION:A Peltier effect device 14 which releases or absorbs heat depending on the polarity and the value of the impressed voltage is fixed to the inner end face of a case 12. And, a chip holder 16, which is excellent in thermal conductivity, is fixed to an end face of the Peltier effect device opposite to the end face fixed to the case 12 and a LD chip 18 is provided thereon. A ball lens is fixed to the chip holder 16 through the intermediary of a lens holder 20 and the position alignment is performed so as to position a projecting end face of the LD chip 18 at the focal point of the ball lens 22. In addition, an optical isolator 24 is fixed to the case 12 through the intermediary of a holder 32 and green rod lenses 26 and 28 and an optical fiber 30 are fixed to the case 12 through the intermediary of holders, 34, 36, and 38 respectively.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18054087A JPS6424486A (en) | 1987-07-20 | 1987-07-20 | Semiconductor laser module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18054087A JPS6424486A (en) | 1987-07-20 | 1987-07-20 | Semiconductor laser module |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6424486A true JPS6424486A (en) | 1989-01-26 |
Family
ID=16085056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18054087A Pending JPS6424486A (en) | 1987-07-20 | 1987-07-20 | Semiconductor laser module |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6424486A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62139375A (en) * | 1985-12-13 | 1987-06-23 | Hitachi Ltd | Semiconductor laser module provided with electronic cooling element |
JPS6410686A (en) * | 1987-07-03 | 1989-01-13 | Hitachi Ltd | Semiconductor laser module with electronic cooling element |
-
1987
- 1987-07-20 JP JP18054087A patent/JPS6424486A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62139375A (en) * | 1985-12-13 | 1987-06-23 | Hitachi Ltd | Semiconductor laser module provided with electronic cooling element |
JPS6410686A (en) * | 1987-07-03 | 1989-01-13 | Hitachi Ltd | Semiconductor laser module with electronic cooling element |
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