Method and apparatus for storage and retrieval with multilayer o

Details Method and apparatus for storage and retrieval with multilayer o Method and apparatus for storage and retrieval with multilayer o

1995-03-10

1996-06-11

Ben, Loha

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369 94, 369102, 369112, 3692751, 369 4423, G11B 700

Patent

active

055263380

ABSTRACT:
A multilayer optical disk system, which includes an optical disk unit having a number of connected optical disks. A number of light sources, such as diode lasers, are used to provide a number of light beams of different wavelengths. A wavelength multiplexer combines the light beams into a single beam which is then axially dispersed so that light of different wavelengths are simultaneously focuses onto the different optical disks. A wavelength demultiplexer splits light reflected from the optical disks according to wavelength to produce separate beams which are then separately detected.

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