Method and apparatus for reducing semiconductor laser optical no

Details Method and apparatus for reducing semiconductor laser optical no Method and apparatus for reducing semiconductor laser optical no

1983-01-21

1985-07-30

McElheny, Jr., Donald

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

369122, G11B 700

Patent

active

045326193

ABSTRACT:
A method and apparatus is disclosed for reducing optical noise in an optical information processing system having a single longitudinal mode laser which is converged on a record medium for detecting information stored on the medium. A range from 1-10% of the total emitted light per facet of the laser is fed back to an emitting point of the laser to minimize the occurrence of optical noise present in the light emitted from the laser.

REFERENCES:
patent: 4333173 (1982-06-01), Yonezawa et al.
patent: 4334300 (1982-06-01), Arquie et al.
patent: 4345321 (1982-08-01), Arquie et al.
patent: 4358200 (1982-11-01), Heemskerk et al.
patent: 4375680 (1983-03-01), Cahill et al.

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