JPH0414423B2 - - Google Patents
Info
- Publication number
- JPH0414423B2 JPH0414423B2 JP57208083A JP20808382A JPH0414423B2 JP H0414423 B2 JPH0414423 B2 JP H0414423B2 JP 57208083 A JP57208083 A JP 57208083A JP 20808382 A JP20808382 A JP 20808382A JP H0414423 B2 JPH0414423 B2 JP H0414423B2
- Authority
- JP
- Japan
- Prior art keywords
- output
- semiconductor laser
- optical
- laser chip
- disk
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 22
- 239000004065 semiconductor Substances 0.000 claims description 17
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
- G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57208083A JPS5998326A (ja) | 1982-11-26 | 1982-11-26 | 光学再生装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57208083A JPS5998326A (ja) | 1982-11-26 | 1982-11-26 | 光学再生装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5998326A JPS5998326A (ja) | 1984-06-06 |
| JPH0414423B2 true JPH0414423B2 (enrdf_load_stackoverflow) | 1992-03-12 |
Family
ID=16550356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57208083A Granted JPS5998326A (ja) | 1982-11-26 | 1982-11-26 | 光学再生装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5998326A (enrdf_load_stackoverflow) |
-
1982
- 1982-11-26 JP JP57208083A patent/JPS5998326A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5998326A (ja) | 1984-06-06 |
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