40-Gbit/s photonic random access memory for photonic packet-switched networks
Abstract
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.
- Publication:
-
Optoelectronic Integrated Circuits VI
- Pub Date:
- June 2004
- DOI:
- 10.1117/12.532544
- Bibcode:
- 2004SPIE.5356..130T