TW200631006A - Laser diode with integrated quarter wave plate and grating - Google Patents
Laser diode with integrated quarter wave plate and gratingInfo
- Publication number
- TW200631006A TW200631006A TW094139163A TW94139163A TW200631006A TW 200631006 A TW200631006 A TW 200631006A TW 094139163 A TW094139163 A TW 094139163A TW 94139163 A TW94139163 A TW 94139163A TW 200631006 A TW200631006 A TW 200631006A
- Authority
- TW
- Taiwan
- Prior art keywords
- laser diode
- grating
- wave plate
- quarter wave
- opu
- Prior art date
Links
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
- G11B7/127—Lasers; Multiple laser arrays
-
- 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
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1353—Diffractive elements, e.g. holograms or gratings
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
-
- 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
- H01S5/005—Optical components external to the laser cavity, specially adapted therefor, e.g. for homogenisation or merging of the beams or for manipulating laser pulses, e.g. pulse shaping
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04105686 | 2004-11-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200631006A true TW200631006A (en) | 2006-09-01 |
Family
ID=35539427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW094139163A TW200631006A (en) | 2004-11-11 | 2005-11-08 | Laser diode with integrated quarter wave plate and grating |
Country Status (2)
Country | Link |
---|---|
TW (1) | TW200631006A (zh) |
WO (1) | WO2006051470A1 (zh) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW312787B (en) * | 1996-09-13 | 1997-08-11 | Ind Tech Res Inst | Micro-optic pickup head |
US6842467B1 (en) * | 2000-03-08 | 2005-01-11 | Finisar Corporation | Fiber optic laser transmitter with reduced near end reflections |
JP3662519B2 (ja) * | 2000-07-13 | 2005-06-22 | シャープ株式会社 | 光ピックアップ |
JP2003317302A (ja) * | 2002-04-25 | 2003-11-07 | Sony Corp | 光学ヘッド及び光ディスク装置 |
-
2005
- 2005-11-07 WO PCT/IB2005/053645 patent/WO2006051470A1/en active Application Filing
- 2005-11-08 TW TW094139163A patent/TW200631006A/zh unknown
Also Published As
Publication number | Publication date |
---|---|
WO2006051470A1 (en) | 2006-05-18 |
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