Abstract
AbstractA Reed‐Solomon coded optically preamplified pulse‐position modulation system is analyzed. Results are presented at a bit rate of 622 Mbit/s and a wavelength of 1.537 μm, comparing the system with an equivalent on‐off nonreturn‐to‐zero (OOK NRZ) system. The theoretical results demonstrate that the system offers a potential sensitivity of 7 photons/bit, which represents an improvement of 7.5 dB over the equivalent OOK system and is comparable with that of the best coherent systems reported to date. © 1995 John Wiley & Sons, Inc.
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