JPS5561084A - Semiconductor laser device of striped construction - Google Patents
Semiconductor laser device of striped constructionInfo
- Publication number
- JPS5561084A JPS5561084A JP13418478A JP13418478A JPS5561084A JP S5561084 A JPS5561084 A JP S5561084A JP 13418478 A JP13418478 A JP 13418478A JP 13418478 A JP13418478 A JP 13418478A JP S5561084 A JPS5561084 A JP S5561084A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- type
- semiconductor laser
- laser device
- stripe
- 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 obtain a laser transmission of single transverse mode over a wide range of electric current, by adopting a specific relationship between the stripe width of striped region constituting a semiconductor laser device and the effective current concentration width on the pn junction surface.
CONSTITUTION: An n-type Ga1-xAlxAs layer 2 (x≃0.3), p-type GaSa layer 3 as an active layer, p-type Ga1-xAlxAs layer 4 (x≃0.3) and a p+-type GaAs layer 5 are laminated and grown on an n-type GaAs substrate 1, to form a double-heterodyne type semiconductor laser device. Stripe portions which constitute the electrodes are exposed on the surface of the layer 5, while remainder portions are covered with an insulating film 6 such as of SiO2. A p-side electrode 7 is laid on the film 6 to make contact with the stripe portions, while n-side electrode 8 is attached to the reverse side of the substrate 1. The stripe width W and the effective current concentration width d of the pn junction are selected to meet the following conditions. D≤8μm, D/3≤W≤D/2.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13418478A JPS5561084A (en) | 1978-10-30 | 1978-10-30 | Semiconductor laser device of striped construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13418478A JPS5561084A (en) | 1978-10-30 | 1978-10-30 | Semiconductor laser device of striped construction |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5561084A true JPS5561084A (en) | 1980-05-08 |
Family
ID=15122394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13418478A Pending JPS5561084A (en) | 1978-10-30 | 1978-10-30 | Semiconductor laser device of striped construction |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5561084A (en) |
-
1978
- 1978-10-30 JP JP13418478A patent/JPS5561084A/en active Pending
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