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A DVD pickup based on dual-wavelength integrated laser diode

✍ Scribed by Wang Jiping; Ruan Yu

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
105 KB
Volume
34
Category
Article
ISSN
0030-3992

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✦ Synopsis

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 DVD pickup design are discussed. The feasibility of this scheme is proved by experimental results.

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