Low-noise high-reliability 680-nm optical head enables robust 14.8-gigabyte/disk product

Edward C. Gage; Scott Beckens; Patrick J. Cronkite; Steve Dohmeier; David B. Kay; Mike Meichle; Robert J. Metzger

doi:10.1117/12.218714

8 September 1995 Low-noise high-reliability 680-nm optical head enables robust 14.8-gigabyte/disk product

Edward C. Gage, Scott Beckens, Patrick J. Cronkite, Steve Dohmeier, David B. Kay, Mike Meichle, Robert J. Metzger

Proceedings Volume 2514, Optical Data Storage '95; (1995) https://doi.org/10.1117/12.218714
Event: Optical Data Storage '95, 1995, San Diego, CA, United States

Abstract

A high reliability and low noise 680 nm optical head is described. This head enables a high data integrity, 14.8 GByte/disk product (KODAK optical disk system 2000). The laser intensity noise is measured to be -133 to -137 dB/Hz at the data frequencies. This allows phase margin for the system to exceed 50%. The laser with drive electronics is shown to have a pulse lifetime of greater than 40,000 hours at exaggerated drive conditions.

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Edward C. Gage, Scott Beckens, Patrick J. Cronkite, Steve Dohmeier, David B. Kay, Mike Meichle, and Robert J. Metzger "Low-noise high-reliability 680-nm optical head enables robust 14.8-gigabyte/disk product", Proc. SPIE 2514, Optical Data Storage '95, (8 September 1995); https://doi.org/10.1117/12.218714

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