A DVD pickup based on dual-wavelength in
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Wang Jiping; Ruan Yu
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Article
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2002
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Elsevier Science
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English
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An innovative DVD pickup based on integrated dual-wavelength laser diode is developed. The dual-wavelength laser diode emits two lasers with di erent wavelengths. The laser with 650 nm wavelength is used for DVD, and the other with 780 nm wavelength is used for CD and CD-R=RW. Key techniques of this