Compact digital holographic memory

Recent technical progress in developing a compact digital holographic memory system is presented. Due to rapid advancement in data input and output devices, electro-optic beam steering technology, and diode laser source, a compact holographic memory brassboard for digital data storage has been integrated. The system consist of a 1 Meg pixel binary spatial light modulator, a PI beam steering mirror, a CMOS photo sensor, a LiNbO/sub 3/ photorefractive crystal, and a blue laser source. The system architecture and experimental test data was discussed. An overview of the holographic data storage technology will also be discussed.

[1]  William Wilson,et al.  High Density Holographic Data Storage , 2000, IEEE Symposium on Mass Storage Systems.

[2]  Tien-Hsin Chao,et al.  Nonvolatile Rad-Hard Holographic Memory , 2001 .

[3]  Keith E. Wilson,et al.  High Data Rate Instrument Study , 1999 .

[4]  Nazanin Rahnavard,et al.  Nonuniform error correction using low-density parity-check codes , 2005, IEEE Transactions on Information Theory.

[5]  T. Daud,et al.  Overview of radiation tolerant unlimited write cycle non-volatile memory , 2000, 2000 IEEE Aerospace Conference. Proceedings (Cat. No.00TH8484).

[6]  Jehoshua Bruck,et al.  X-Code: MDS Array Codes with Optimal Encoding , 1999, IEEE Trans. Inf. Theory.

[7]  Tien-Hsin Chao,et al.  Advanced Compact Holographic Data Storage System , 2000 .

[8]  Tien-Hsin Chao,et al.  Compact Holographic Data Storage System , 2001, 2001 Eighteenth IEEE Symposium on Mass Storage Systems and Technologies.