Acousto-optic reading/recording head for high-density...

Details Acousto-optic reading/recording head for high-density... Acousto-optic reading/recording head for high-density...

2008-02-10

2010-12-07

Young, Wayne R (Department: 2627)

Dynamic information storage or retrieval

Specific detail of information handling portion of system

Radiation beam modification of or by storage medium

Reexamination Certificate

active

07848212

ABSTRACT:
High-density optical data storage comprising multi-layer optical disc and multi-wavelength reading/recording head, wherein the reading/recording head utilizes a single-mode optic fiber connecting the head with remote short-wavelength laser and acousto-optical (AO) cells that allow precisely positioning the focused light spot on the track and filtering the specific wavelength from multi-wavelength light emitted by the laser built in the head.

REFERENCES:
patent: 5822287 (1998-10-01), Kubota et al.
patent: 5850375 (1998-12-01), Wilde et al.
patent: 7116613 (2006-10-01), Hecht et al.

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