Title: Spherical Aberration Error Detection for Blu-ray Disc Optical Pickups
Abstract: For a high-numerical-aperture (NA) optical pickup system, the spherical aberration (SA) caused by cover layer thickness error should be corrected. We detected the SA error signal using a newly designed hologram optical element (HOE). The HOE has both sufficient signal sensitivity and constant signal level independent of objective lens shift. In addition, we fabricated on SA servo for a dual-layer Blu-ray disc.
Publication Year: 2006
Publication Date: 2006-07-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 2
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