Compact Optical Pickup with a Two-Wavelength Laser Diode
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概要
- 論文の詳細を見る
Optical pickups for digital versatile disk (DVD-ROM) need to be capable of reading compact disc (CD) and recordable compact disk (CD-R) disks. Therefore, two laser sources are needed. A compact optical pickup is presented which employs a dualwavelength integrated (TWIN) laser diode and a diffractive optical element (DOE). The purpose of the DOE is to combine the two beams emitted by the TWIN laser diode. This substantially facilitates design and fabrication of two-wavelength optical pickups. The design of the DOE is discussed in detail. Experimental results on tolerance conditions and signal quality are shown.
- 社団法人応用物理学会の論文
- 2002-03-30
著者
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Richter H
Deutsche Thomson‐brandt Gmbh Villingen‐schwenningen Deu
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Richter Hartmut
Thomson Multimedia Corporate Research. Optical Recording Deutsche Thowson Brandt Gmbh
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Knittel Joachim
Thomson Multimedia Corporate Research. Optical Recording Deutsche Thowson Brandt Gmbh
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KRACKHARDT Ulrich
Chair of Optoelectronics, University of Mannheim
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DAMBACH Soren
Thomson Multimedia Corporate Research. Optical Recording, Deutsche Thowson Brandt GmbH
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Dambach Soren
Thomson Multimedia Corporate Research. Optical Recording Deutsche Thowson Brandt Gmbh
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Krackhardt Ulrich
Chair Of Optoelectronics University Of Mannheim
関連論文
- System Aspects of Dual-Layer Phase-Change Recording with High Numerical Aperture Optics and Blue Laser
- Compact Optical Pickup with a Two-Wavelength Laser Diode
- System Aspects of Dual-Layer Phase-Change Recording with High Numerical Aperture Optics and Blue Laser