14 June 2004 40-Gbit/s photonic random access memory for photonic packet-switched networks
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We present a photonic random access memory (RAM) that can write and read high-speed asynchronous burst optical packets freely by specifying addresses. The photonic RAM consists of an optical clock-pulse generator, an all-optical serial-to-parallel converter, a photonic parallel-to-serial converter, all developed by us, and a CMOS RAM as a storage medium. Unlike conventional optical buffers, which merely function as optical delay lines, the photonic RAM provides various advantages, such as compactness, large capacity, long-term storage, and random access at an arbitrary timing for ultrafast asynchronous burst optical packets. We experimentally confirm its basic operation for 40-Gbit/s 16-bit optical packets.
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Ryo Takahashi, Ryo Takahashi, Tatsushi Nakahara, Tatsushi Nakahara, Kiyoto Takahata, Kiyoto Takahata, Hirokazu Takenouchi, Hirokazu Takenouchi, Takako Yasui, Takako Yasui, Naoto Kondo, Naoto Kondo, Hiroyuki Suzuki, Hiroyuki Suzuki, "40-Gbit/s photonic random access memory for photonic packet-switched networks", Proc. SPIE 5356, Optoelectronic Integrated Circuits VI, (14 June 2004); doi: 10.1117/12.532544; https://doi.org/10.1117/12.532544

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