Differential spot-size focus servo

Thomas D Milster, Mark S. Wang, Fred F. Froehlich, J. L. Kann, Jeff P. Treptau, K. E. Erwin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

The performance of a differential spot-size (wax-wane) focus servo is described. Cross-talk from the tracks is analyzed in the single detector and differential focus circuits. Magnitude of the cross-talk is reduced by a factor of three in the differential circuit. A false FES signal is present when the spot crosses sector marks at an angle.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages348-353
Number of pages6
Volume1499
ISBN (Print)0819406082
StatePublished - 1991
EventOptical Data Storage '91 - Colorado Springs, CO, USA
Duration: Feb 25 1991Feb 27 1991

Other

OtherOptical Data Storage '91
CityColorado Springs, CO, USA
Period2/25/912/27/91

Fingerprint

waxes
Networks (circuits)
Waxes
sectors
Detectors
detectors

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Milster, T. D., Wang, M. S., Froehlich, F. F., Kann, J. L., Treptau, J. P., & Erwin, K. E. (1991). Differential spot-size focus servo. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 1499, pp. 348-353). Publ by Int Soc for Optical Engineering.

Differential spot-size focus servo. / Milster, Thomas D; Wang, Mark S.; Froehlich, Fred F.; Kann, J. L.; Treptau, Jeff P.; Erwin, K. E.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1499 Publ by Int Soc for Optical Engineering, 1991. p. 348-353.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Milster, TD, Wang, MS, Froehlich, FF, Kann, JL, Treptau, JP & Erwin, KE 1991, Differential spot-size focus servo. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 1499, Publ by Int Soc for Optical Engineering, pp. 348-353, Optical Data Storage '91, Colorado Springs, CO, USA, 2/25/91.
Milster TD, Wang MS, Froehlich FF, Kann JL, Treptau JP, Erwin KE. Differential spot-size focus servo. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1499. Publ by Int Soc for Optical Engineering. 1991. p. 348-353
Milster, Thomas D ; Wang, Mark S. ; Froehlich, Fred F. ; Kann, J. L. ; Treptau, Jeff P. ; Erwin, K. E. / Differential spot-size focus servo. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 1499 Publ by Int Soc for Optical Engineering, 1991. pp. 348-353
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