The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 25, 2016
Filed:
Oct. 19, 2010
Victor Petrovich Ostroverkhov, Ballston Lake, NY (US);
Pierino Gianni Bonanni, Loudonville, NY (US);
Xiaolei Shi, Niskayuna, NY (US);
Zhiyuan Ren, Malta, NY (US);
Hua Xia, Niskayuna, NY (US);
Xuefeng Wang, Schenectady, NY (US);
Xinghua Wang, Clifton Park, NY (US);
Victor Petrovich Ostroverkhov, Ballston Lake, NY (US);
Pierino Gianni Bonanni, Loudonville, NY (US);
Xiaolei Shi, Niskayuna, NY (US);
Zhiyuan Ren, Malta, NY (US);
Hua Xia, Niskayuna, NY (US);
Xuefeng Wang, Schenectady, NY (US);
Xinghua Wang, Clifton Park, NY (US);
General Electric Company, Schnectady, NY (US);
Abstract
The present techniques provide methods and systems for recording micro-holograms on a holographic disk using a plurality of counter-propagating light beams in parallel. The parallel counter-propagating light beams overlap to form interference patterns on a data layer and over multiple data tracks in the holographic disk. Rotating the disk enables the parallel recording of micro-holograms over multiple data tracks, thus reducing recording time. Further, the illumination pattern may include illuminated spots and non-illuminated regions, such that each illumination spot may cover a relatively small fraction of the data layer plane, possibly controlling the depth spread of the recorded micro-hologram. In some embodiments, data in the parallel signal beams may be retrieved from a master holographic disk or may be modulated into the parallel signal beams.