Summary form only given, as follows. Reconfigurable processors, like the Field Programmable Gate Arrays (FPGAs), open new computational paradigms where the processor is able to tailor its internal structure to better implement a given application. A typical FPGA consists of an array of configurable logic blocks and a mesh of interconnections fully programmable by the user to perform a given application. By just changing its internal connectivity, the FPGA can implement a totally different new function. However in most of the applications, the FPGA is configured only once and used as coprocessor to carry out some highly complex or time-consuming computation. The reason for such limitation is the small communication bandwidth between the FPGA chip and the external memory, usually ROM, where the configuration data is stored. The Optically Programmable Gate Array (OPGA), an enhanced version of a conventional. FPGA, can overcome this problem. The OPGA utilizes a holographic memory accessed by an array of VCSELs to program its logic. The on-chip logic has been complemented with an array of photodetectors to detect the configuration template recorded in the memory. Combining spatial and shift multiplexing to store the configuration pages in the memory, the OPGA module is very compact and has extremely short configuration time allowing for dynamic reconfiguration. The reconfiguration capability of the OPGA can be applied to solve more efficiently problems in pattern recognition and database searches.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Optically reconfigurable gate array


    Contributors:
    Mumbru, J. (author) / Panotopoulos, G. (author) / Psaltis, D. (author) / Xin An, (author) / Gan Zhou, (author) / Fai Mok, (author)


    Publication date :

    2000-01-01


    Size :

    103178 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Optically Reconfigurable Gate Array

    Mumbru, J. / Panotopoulos, G. / Psaltis, D. et al. | British Library Conference Proceedings | 2000


    A Four-Context Optically Differential Reconfigurable Gate Array

    Nakajima, M. / Watanabe, M. | British Library Online Contents | 2009


    Optically reconfigurable liquid crystal logic gate array (Invited Paper) [2891-519]

    Wang, Y.-J. / Guo, Z. / Zhang, Y. et al. | British Library Conference Proceedings | 1996