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An ultrawide-band semiconductor optical amplifier having an extremely high penalty-free output power of 23 dBm achieved with quantum dots

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8 Author(s)
Akiyama, T. ; Fujitsu Labs. Ltd., Fujitsu Ltd., Tokyo, Japan ; Ekawa, M. ; Sugawara, M. ; Kawaguchi, K.
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A semiconductor optical amplifier (SOA) having a gain of >25 dB, noise figure of <5 dB, and 3-dB saturation output power of >19 dBm, over the record widest bandwidth of 90 nm among all kinds of optical amplifiers, and also having a penalty-free output power of 23 dBm, the record highest among all the SOAs, was realized by using quantum dots.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 8 )