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Proceedings Paper

A measurement method of the transverse focus error detection system
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Paper Abstract

Based on the focus pre-search a method is presented to measure the characters of the traverse focus error detection system. In the pre-search of traverse focus servo system, the traverse focus offset is measured by the focus error occurring time, and the traverse focus error sensitivity and linear range are measured by the focus error slope and peak-to-peak value. A traverse focus error detection system is measured. The results show that the traverse focus offset is too high to stable the focus servo.

Paper Details

Date Published: 15 September 2005
PDF: 4 pages
Proc. SPIE 5966, Seventh International Symposium on Optical Storage (ISOS 2005), 596625 (15 September 2005); doi: 10.1117/12.649826
Show Author Affiliations
Jianyong Zhang, Tsinghua Univ. (China)
Jianshe Ma, Tsinghua Univ. (China)
Duanyi Xu, Tsinghua Univ. (China)
Longfa Pan, Tsinghua Univ. (China)


Published in SPIE Proceedings Vol. 5966:
Seventh International Symposium on Optical Storage (ISOS 2005)
Fuxi Gan; Lisong Hou, Editor(s)

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