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Programmable Optically Reconfigurable Gate Array Architecture using a PAL-SLM

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2 Author(s)
Kubota, S. ; Electr. & Electron. Eng., Shizuoka Univ., Hamamatsu ; Watanabe, M.

Recently, optically reconfigurable gate arrays (ORGAs) consisting of a gate array VLSI, a holographic memory, and a laser array have been developed to achieve huge virtual gate counts that is much larger than those of currently available VLSIs. Using ORGA architecture, greater than 1 tera gate count VLSIs are possible by exploiting the storage capacity of a holographic memory. Conventional ORGAs have only one shortcoming compared with current field programmable gate arrays (FPGAs): they are not reprogrammable after their fabrication because, to reprogram ORGAs, a holographic memory must be disassembled from its ORGA package, reprogrammed outside of the ORGA package using a holographic memory writer, and implemented into the ORGA package with high precision beyond that available by manual assembly. To improve that shortcoming, this paper presents the world's first programmable ORGA architecture and experimental results. Furthermore, in light of those experimental results, this paper presents discussion of the availability of this architecture and future plans.

Published in:

System Integration, 2008 IEEE/SICE International Symposium on

Date of Conference:

4-4 Dec. 2008

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