JPS5544735A - Semiconductor laser device - Google Patents
Semiconductor laser deviceInfo
- Publication number
- JPS5544735A JPS5544735A JP11816978A JP11816978A JPS5544735A JP S5544735 A JPS5544735 A JP S5544735A JP 11816978 A JP11816978 A JP 11816978A JP 11816978 A JP11816978 A JP 11816978A JP S5544735 A JPS5544735 A JP S5544735A
- Authority
- JP
- Japan
- Prior art keywords
- radiant
- laser
- laser rays
- kicked
- phenomenon
- 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)
Abstract
PURPOSE: To prevent a "Being kicked" phenomenon of radiant laser rays, by removing a portion corresponding to a passage of the radiant laser rays from each portion corresponding to a laser ray radiant portion.
CONSTITUTION: When distance between an end surface, to which a laser ray radiant portion 3 is formed, of a laser element 1 and an end surface of a heat sink 4a is A, a space between the radiant portion 3 and the first electrode 2 is E, a radiation angle of laser rays emitted to the outside through a groove 7 from the radiant portion 3 is θ and the sum of each thickness of the electrode 2, solder 6 with the low melting point and a metallic layer 5 is E', the depth D of the groove 7 satisfying an expression tan(θ/2)=(D+E+E')/A is set. Thus, a "Being kicked" phenomenon can be prevented because a portion is removed which corresponds to a passage of the laser rays radiated from the radiant portion 3.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11816978A JPS5544735A (en) | 1978-09-25 | 1978-09-25 | Semiconductor laser device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11816978A JPS5544735A (en) | 1978-09-25 | 1978-09-25 | Semiconductor laser device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5544735A true JPS5544735A (en) | 1980-03-29 |
Family
ID=14729816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11816978A Pending JPS5544735A (en) | 1978-09-25 | 1978-09-25 | Semiconductor laser device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5544735A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6066493A (en) * | 1983-08-23 | 1985-04-16 | シーメンス、アクチエンゲゼルシヤフト | Laser diode |
JPS611856U (en) * | 1984-06-08 | 1986-01-08 | 松下電器産業株式会社 | optical reader |
JPH0468572U (en) * | 1990-10-24 | 1992-06-17 | ||
JP2005005511A (en) * | 2003-06-12 | 2005-01-06 | Fanuc Ltd | Semiconductor laser apparatus |
WO2017135099A1 (en) * | 2016-02-04 | 2017-08-10 | 古河電気工業株式会社 | Optical coupling structure between optical fiber and semiconductor laser |
-
1978
- 1978-09-25 JP JP11816978A patent/JPS5544735A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6066493A (en) * | 1983-08-23 | 1985-04-16 | シーメンス、アクチエンゲゼルシヤフト | Laser diode |
JPS611856U (en) * | 1984-06-08 | 1986-01-08 | 松下電器産業株式会社 | optical reader |
JPH0468572U (en) * | 1990-10-24 | 1992-06-17 | ||
JP2005005511A (en) * | 2003-06-12 | 2005-01-06 | Fanuc Ltd | Semiconductor laser apparatus |
WO2017135099A1 (en) * | 2016-02-04 | 2017-08-10 | 古河電気工業株式会社 | Optical coupling structure between optical fiber and semiconductor laser |
US10670819B2 (en) | 2016-02-04 | 2020-06-02 | Furukawa Electric Co., Ltd. | Optical coupling structure between optical fiber and semiconductor laser |
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