High-density overwrite recording for a phase-change medium using a visible-light laser diode

Hiroharu Sato; Toyoki Taguchi; Kei Shimura; Toshihiro Sugaya

doi:10.1117/12.137552

13 August 1992 High-density overwrite recording for a phase-change medium using a visible-light laser diode

Hiroharu Sato, Toyoki Taguchi, Kei Shimura, Toshihiro Sugaya

Proceedings Volume 1663, Optical Data Storage; (1992) https://doi.org/10.1117/12.137552
Event: Optical Data Storage Topical Meeting, 1992, San Jose, CA, United States

Abstract

A fast data transfer and high density recording was realized, using a 30 mw visible laser and a GeTeSb phase-change medium. Fast laser power control technique was used for suppressing the laser light power fluctuations, and a RIN of -123 dB was obtained. Using this technique, a CNR of 56 dB and an erase ratio of 25 dB was obtained with a mark pitch of 1.25 micrometers for an overwritable phase change medium.

Citation Download Citation

Hiroharu Sato, Toyoki Taguchi, Kei Shimura, and Toshihiro Sugaya "High-density overwrite recording for a phase-change medium using a visible-light laser diode", Proc. SPIE 1663, Optical Data Storage, (13 August 1992); https://doi.org/10.1117/12.137552

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