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Opto-RAM: A device for high bit rate packet switching

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Abstract

Modern telecommunications systems are placing an ever-increasing demand on switches to operate in large bandwidth networks. One such telecommunications standard is asynchronous transfer mode (ATM), where the data is switched in 48 byte packets. Switching these packets is the most difficult scenario in telecommunications. Recently we have demonstrated an ATM switch with a throughput of 0.4Gbit/sec based on a spatial light modulator known as Opto-RAM. The opto-RAM device allows appears as fast RAM memory to the electronic system yet allows optical reading of the data via liquid crystal pixels. The opto-RAM was used as the input device to display 24 ATM packets into an ATM switch.

© 1999 Optical Society of America

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