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

1994-07-22

1996-07-16

Bovernick, Rodney B.

Optical waveguides

With optical coupler

Input/output coupler

385 10, 385 9, 359629, 369121, G02B 634

Patent

active

055376177

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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