| 抄録（英） |
This paper describes application of a travelling-wave type semiconductor laser amplifier(TW-SLA) to broadband distribution systems. In the simultaneous amplification of wavelength-division-multiplexed signals, crosstalk between channels is estimated against the amplifier input optical power. The TW-SLA is more effective as booster-amplifier than as preamplifier because the optical loss is much more compensated. In the booster-amplifier, the optical loss is compensated by the signal gain of TW-SLA with the optical filter of which bandwidth is under 10nm. In the 400Mbit, s, 2 channel multiplexed signals transmission experiment using 1.3 um SLA with 13 dB of signal gain, the compensated optical loss by the booster amplifier was 11 dB and the increased sensitivity by the preamplifier was 1 dB. Consequentially, TW-SLA is confirmed to be more effective as booster-amplifier than as preamplifier. |