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Simultaneous amplification of a 20-channel multiwavelength signal using a traveling-wave semiconductor optical amplifier is discussed. The channels occupied a band 34 nm wide centered at 1.54 mu m, and 6-8-dB net gains were obtained. Bit-error-rate measurements at 1 Gb/s showed small receiver penalties due to amplifier noise and interchannel crosstalk.>
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Coquin et al. (1989) studied this question.
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