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Simple Optical Recording Head

IP.com Disclosure Number: IPCOM000038307D
Original Publication Date: 1989-Dec-01
Included in the Prior Art Database: 2005-Jan-31

Publishing Venue

IBM

Related People

Authors:
Chen, M [+details]

Abstract

A simple optical recording head is described in which array lasers are used to write/read as well as generate focus and tracking signals. Optical feedback induced modulation of the laser operating condition is used to detect data and servo error signals. This greatly simplifies the design of the head.