Abstract

We describe the application of partial-response (PR) signaling in rewritable phase-change optical data storage. No electronic filter is necessary to shape the readout signal to a certain PR target. A PR-like waveform at the output of the read channel is directly achieved by optical recording. A genetic algorithm is used to optimize the parameters for writing and therefore to minimize the difference between the actual readout signal and the ideal PR waveform. With a laser wavelength of 0.66 µm and an objective lens with a numerical aperture of 0.6, four linear densities were examined: 0.4, 0.3, 0.25, and 0.2 µm/bit (without modulation). Results showed that the linear density of 0.25 µm/bit can be realized on a rewritable digital-versatile disk.

© 2002 Optical Society of America

Full Article  |  PDF Article
Related Articles
Evaluation of partial-response maximum-likelihood detection for phase-change optical data storage

Chubing Peng and M. Mansuripur
Appl. Opt. 38(20) 4394-4405 (1999)

Write-once optical disk system measuring 300 mm using high-density, pit-edge recording

Takeshi Maeda, Atushi Saito, Hisataka Sugiyama, Shinichi Arai, and Kazuo Shigematsu
Appl. Opt. 34(22) 4965-4971 (1995)

Optimization of semiconductor quantum devices by evolutionary search

Guido Goldoni and Fausto Rossi
Opt. Lett. 25(14) 1025-1027 (2000)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (12)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (2)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription