JPS5264887A - Distribution feedback type laser - Google Patents
Distribution feedback type laserInfo
- Publication number
- JPS5264887A JPS5264887A JP50140220A JP14022075A JPS5264887A JP S5264887 A JPS5264887 A JP S5264887A JP 50140220 A JP50140220 A JP 50140220A JP 14022075 A JP14022075 A JP 14022075A JP S5264887 A JPS5264887 A JP S5264887A
- Authority
- JP
- Japan
- Prior art keywords
- feedback type
- type laser
- distribution feedback
- laser
- region
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/12—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region the resonator having a periodic structure, e.g. in distributed feedback [DFB] lasers
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
Abstract
PURPOSE:To obtain a laser having monchromaticity inherent to distribution feedback type laser and highly resistant to temperature variation by causing the light emitting spectrum peak wavelength of an active medium in gain region or photoconductive region to have large periodic variation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50140220A JPS5264887A (en) | 1975-11-25 | 1975-11-25 | Distribution feedback type laser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50140220A JPS5264887A (en) | 1975-11-25 | 1975-11-25 | Distribution feedback type laser |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5264887A true JPS5264887A (en) | 1977-05-28 |
Family
ID=15263691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50140220A Pending JPS5264887A (en) | 1975-11-25 | 1975-11-25 | Distribution feedback type laser |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5264887A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5077752A (en) * | 1989-06-30 | 1991-12-31 | Optical Measurement Technology Development Co., Ltd. | Semiconductor laser |
-
1975
- 1975-11-25 JP JP50140220A patent/JPS5264887A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5077752A (en) * | 1989-06-30 | 1991-12-31 | Optical Measurement Technology Development Co., Ltd. | Semiconductor laser |
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