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Applied Optics

Applied Optics


  • Vol. 26, Iss. 18 — Sep. 15, 1987
  • pp: 3981–3986

Analysis of astigmatic focusing and push–pull tracking error signals in magnetooptical disk systems

Masud Mansuripur  »View Author Affiliations

Applied Optics, Vol. 26, Issue 18, pp. 3981-3986 (1987)

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Methods of geometrical optics are used in deriving a simple expression for the focus error signal in terms of the parameters of an astigmatic system. The extent of validity of this result is then examined by comparison with diffraction calculations. Diffraction analysis also permits the study of push–pull tracking error signal from pregrooved disk surfaces.

© 1987 Optical Society of America

Original Manuscript: January 6, 1987
Published: September 15, 1987

Masud Mansuripur, "Analysis of astigmatic focusing and push–pull tracking error signals in magnetooptical disk systems," Appl. Opt. 26, 3981-3986 (1987)

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