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Proceedings Paper

Application of apodization filter in blue-ray storage
Author(s): Peng She; Duanyi Xu; Guosheng Qi; Rong Liu; Zhijun Lei
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Paper Abstract

Next generation of optical storage will use shorter wavelength lasers and higher NA lens to achieve large capacity and high density. But with increasing NA and decreasing wavelength, the depth of focus decreases rapidly. We describe a technique to get smaller width focus spot and longer depth of focus by shaping a focused Gaussian beam. The important feature of the filters is their simplicty. The apodization can be used for applications such as blue-ray optical data storage, super-REN storage and mastering.

Paper Details

Date Published: 17 September 2002
PDF: 6 pages
Proc. SPIE 4930, Advanced Optical Storage Technology, (17 September 2002); doi: 10.1117/12.483297
Show Author Affiliations
Peng She, Tsinghua Univ. (China)
Duanyi Xu, Tsinghua Univ. (China)
Guosheng Qi, Tsinghua Univ. (China)
Rong Liu, Tsinghua Univ. (China)
Zhijun Lei, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 4930:
Advanced Optical Storage Technology
Duanyi Xu; Seiya Ogawa, Editor(s)

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