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Proceedings Paper

Planar integrated optical disk pickup
Author(s): Deer Yi; Yingbai Yan; Si Lu; Guofan Jin; Haitao Liu
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Paper Abstract

Though DVD becomes more and more popular, there are still millions of CD-R disk in using. The ability of reading both DVD and CD-R disk is necessary in compatible disk drive. Traditional optical pickup consists of different bulk components, which result in high cost, high difficulty in assembly and low reliability. Integration is a way to overcome these troubles. Based on planar optics, an integrated digital versatile disk (DVD)/compact disk recordable (CD-R) compatible optical pickup has been developed. In this device, the beams of two wavelengths follow different zigzag optical paths inside a few-mm thick glass substrate, which is used as a light guide. It is demonstrated that a beam combiner, a polarized beam splitter, a Fresnel prism, and a beam separator were integrated around a glass substrate, and such a planar optical pickup exhibited an excellent performance with high efficiency. It confirms that planar optics is an effective way to realize compatibility of DVD/CD-R.

Paper Details

Date Published: 10 June 2002
PDF: 5 pages
Proc. SPIE 4647, Functional Integration of Opto-Electro-Mechanical Devices and Systems II, (10 June 2002); doi: 10.1117/12.469822
Show Author Affiliations
Deer Yi, Tsinghua Univ. (China)
Yingbai Yan, Tsinghua Univ. (China)
Si Lu, Tsinghua Univ. (China)
Guofan Jin, Tsinghua Univ. (China)
Haitao Liu, Tsinghua Univ. (China)

Published in SPIE Proceedings Vol. 4647:
Functional Integration of Opto-Electro-Mechanical Devices and Systems II
Michael R. Descour; Juha T. Rantala, Editor(s)

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