Optical amplification in a multichannel FSK coherent system
- 1 September 1988
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 24 (18) , 1157-1159
- https://doi.org/10.1049/el:19880786
Abstract
We report the crosstalk degradation caused by an optical amplifier in a densely spaced four-channel heterodyne FSK system. A maximum receiver sensitivity of 250 photons/bit is obtained for an optimum input signal level. This result is 5dB poorer than the sensitivity obtained in the absence of an optical amplifier.Keywords
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