TY - GEN
T1 - Fault tolerance of a holographic storage system
AU - Watanabe, Takahiro
AU - Watanabe, Minoru
PY - 2010
Y1 - 2010
N2 - Demand is increasing daily for large storage systems that are useful for devices operating under a radiation-rich space environment, such as spacecraft, space satellites, and space robots. A holographic storage system, which can easily provide large storage capacity, is a candidate for space embedded systems. The holographic storage system, which requires no rotation mechanism, usually consists of a holographic memory material, a laser array, and a photodiode array. Although a holographic memory itself is an extremely robust device for use in a space radiation environment, its associated components are vulnerable to radiation. Such vulnerable devices can cause severe problems by preventing the reading of all holographic memory contents. This is a turn-off failure mode of a laser array. This paper therefore presents a recovery method for a turn-off failure mode of a laser array on a holographic storage system and presents results of its demonstration.
AB - Demand is increasing daily for large storage systems that are useful for devices operating under a radiation-rich space environment, such as spacecraft, space satellites, and space robots. A holographic storage system, which can easily provide large storage capacity, is a candidate for space embedded systems. The holographic storage system, which requires no rotation mechanism, usually consists of a holographic memory material, a laser array, and a photodiode array. Although a holographic memory itself is an extremely robust device for use in a space radiation environment, its associated components are vulnerable to radiation. Such vulnerable devices can cause severe problems by preventing the reading of all holographic memory contents. This is a turn-off failure mode of a laser array. This paper therefore presents a recovery method for a turn-off failure mode of a laser array on a holographic storage system and presents results of its demonstration.
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U2 - 10.1109/ISCIT.2010.5665158
DO - 10.1109/ISCIT.2010.5665158
M3 - Conference contribution
AN - SCOPUS:78651237649
SN - 9781424470105
T3 - ISCIT 2010 - 2010 10th International Symposium on Communications and Information Technologies
SP - 1126
EP - 1130
BT - ISCIT 2010 - 2010 10th International Symposium on Communications and Information Technologies
T2 - 2010 10th International Symposium on Communications and Information Technologies, ISCIT 2010
Y2 - 26 October 2010 through 29 October 2010
ER -