Multi-channel optical head and data storage system

Details Multi-channel optical head and data storage system Multi-channel optical head and data storage system

1992-08-04

1994-10-04

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 4421, G11B 700

Patent

active

053532732

ABSTRACT:
A multichannel optical head and data storage system employs an integrated-optical read channel. The read channel may be fabricated on a planar waveguide structure that separates the data signals of the multiple lasers. The read channel includes focus error sensors and track error sensors. The optical head may be used for amplitude recording systems such as phase-change erasable and write-once media, ablation media, dye-polymer media, and OD-ROM systems.

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