TY - JOUR
T1 - Effect of particle contamination of objective lens in a DVD-ROM drive on laser diode power and photo diode RF signal
AU - Lee, Dae Young
AU - Pae, Yang Il
AU - Lee, Jaeho
AU - Hwang, Jungho
PY - 2005/5
Y1 - 2005/5
N2 - 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.
AB - 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.
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U2 - 10.1143/JJAP.44.3412
DO - 10.1143/JJAP.44.3412
M3 - Article
AN - SCOPUS:23144467645
SN - 0021-4922
VL - 44
SP - 3412
EP - 3413
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 5 B
ER -