Optical system in a magneto-optical memory device

Details Optical system in a magneto-optical memory device Optical system in a magneto-optical memory device

1984-11-06

1988-01-26

Arnold, Bruce Y.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369110, G02B 530

Patent

active

047213680

ABSTRACT:
A magneto-optical memory device includes a recording medium having a magnetic anisotropy in a direction perpendicular to the main surface thereof. A semiconductor laser is employed in an optical system of the magneto-optical memory device for reproduction purposes. A polarization beam splitter is disposed in the optical system. A multi coated dielectric thin-film is deposited on the reflection surface of the polarization beam splitter in order to establish a desired relationship between the reflection of the P-polarization component and the S-polarization component.

REFERENCES:
patent: 4337535 (1982-06-01), Van Megan et al.
patent: 4409631 (1983-10-01), Matsumoto
patent: 4507766 (1985-03-01), Saimi et al.
patent: 4516837 (1985-05-01), Soref et al.

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