Liquid crystal lens for spherical aberration compensation in a blu-ray disc system

Knittel, J., Richter, H., Hain, M., Somalingam, S. and Tschudi, T. (2005) Liquid crystal lens for spherical aberration compensation in a blu-ray disc system. IEE proceedings. Science, Measurement and Technology, 152 1: 15-18. doi:10.1049/ip-smt:20051044


Author Knittel, J.
Richter, H.
Hain, M.
Somalingam, S.
Tschudi, T.
Title Liquid crystal lens for spherical aberration compensation in a blu-ray disc system
Journal name IEE proceedings. Science, Measurement and Technology   Check publisher's open access policy
ISSN 1350-2344
Publication date 2005-01-03
Sub-type Article (original research)
DOI 10.1049/ip-smt:20051044
Volume 152
Issue 1
Start page 15
End page 18
Total pages 4
Place of publication London, U.K.
Publisher IEE
Language eng
Subject 0906 Electrical and Electronic Engineering
Abstract Theoretical and experimental investigations into the use of a liquid crystal lens with a variable focal length for spherical aberration compensation in an optical pickup are presented. Spherical aberration is induced when the cover-layer thickness of the optical disc deviates from its nominal value. A convex liquid crystal lens is integrated into a Blu-ray standard conform optical pickup and tested with a 50 Gbyte dual-layer ROM disk. Excellent jitter values on the upper (6.8%) and on the lower (6.4%) data layer are achieved
Keyword Aberrations
Jitter
Lenses
Liquid crystal devices
Optical disc storage
Optical multilayers
Blu-ray disc system
Cover layer thickness
Optical pickup
Spherical aberration compensation
Variable focal length
Dual layer ROM disk
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Mathematics and Physics
 
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