Effect of Particle Contamination of Objective Lens in a DVD-ROM Drive on Laser Diode Power and Photo Diode RF Signal
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概要
- 論文の詳細を見る
Air flow produced by disk rotation in an optical disk drive introduces air borne contaminant particles into the drive, which adhere to the objective lens and generates read/write errors. These particles are a serious problem for high-density storage devices and therefore, the effect of particle contamination in a digital versatile disk-read only memory (DVD-ROM) drive on laser diode power and photo diode RF signal was experimentally investigated. The laser power and amplitude of the photo diode RF were reduced, and the RF jitter was exponentially increased with increasing level of contamination of the lens. In addition, data could not be accessed when the contaminated surface area was greater than 20% of the lens surface area.
- INSTITUTE OF PURE AND APPLIED PHYSICSの論文
- 2005-05-15
著者
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Pae Yang-il
Department Of Mechanical Engineering Yonsei University
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Lee Jaeho
Department Of Biomaterial Science College Of Natural Resources & Life Science Pusan National Uni
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Lee Jaeho
Department Of Mechanical Engineering Yonsei University
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Lee Dae-young
Department Of Mechanical Engineering Yonsei University
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Hwang Jungho
Department of Mechanical Engineering, Yonsei University, Seoul 120-749, Korea
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Hwang Jungho
Department Of Mechanical Engineering Yonsei University
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