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Proceedings Paper

Direct semiconductor laser readout in optical data storage
Author(s): Janne K. Aikio; Dennis G. Howe
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Paper Abstract

Optical disk readout based on direct optical feedback to a semiconductor laser is studied via simulations. Laser dynamics and the diffraction of light in the extremely short external cavity formed by the laser front facet and the optical disk surface are taken into account. We compute both the variation of the laser's output power and its oscillation spectrum versus the position of scanned data marks. The characteristics of the laser's spectral response versus flying height and versus laser facet reflectance variations are described. Techniques for achieving various types of enhanced playback are discussed.

Paper Details

Date Published: 18 September 2000
PDF: 10 pages
Proc. SPIE 4090, Optical Data Storage 2000, (18 September 2000); doi: 10.1117/12.399332
Show Author Affiliations
Janne K. Aikio, VTT Electronics (Finland) and Optical Sciences Ctr./Univ. of Arizona (Finland)
Dennis G. Howe, Optical Sciences Ctr./Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 4090:
Optical Data Storage 2000
Douglas G. Stinson; Ryuichi Katayama, Editor(s)

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