Holographic storage device and method for simultaneously recording and reading on two sides

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11302359
APP PUB NO 20210225399A1
SERIAL NO

17135201

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Abstract

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The present invention relates to a holographic storage device and method for simultaneously recording and reading on two sides, and pertains to the technical field of optical holographic storage. The device and method disclosed in the present invention use a characteristic that orthogonal light would not interfere with each other and a Bragg selectivity characteristic for holographic storage, and use two optical heads to constitute two interference fields orthogonal in polarization directions on two sides of a same position of a holographic storage medium, so as to perform two-path simultaneous recording and reading on a hologram. The device and method provided in the present invention implement two-path parallel recording and reading of holographic storage, and combine shift multiplexing and circumferential rotation multiplexing, thereby improving the speed of an information data recording and reading process while increasing a capacity of the holographic storage.

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Patent Owner(s)

  • AMETHYSTUM STORAGE TECHNOLOGY CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hu, Dejiao Guangdong, CN 15 9
Liu, Yicheng Guangdong, CN 31 131
Luo, Tiewei Guangdong, CN 11 11
Tian, Jun Guangdong, CN 301 2816
Zheng, Mu Guangdong, CN 10 9

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