InAs/InP Quantum Dash Semiconductor Optical Amplifiers for Modern Communication Networks

We demonstrate on a series of C-Band and L-band quantum dash (QD) semiconductor optical amplifiers (SOAs) with different numbers of QD stacked layers. The overall preformation was investigated. The small-signal gain and noise figure were obtained at about 26.4 dB and 6.3 dB, respectively, at 1550 nm. Less gain competitions were observed from our QD-SOAs comparing to EDFA. The QD-SOAs were verified in a millimeter-wave (mmW) radio-over-fiber (RoF) fronthaul wireless link with 24-Gb/s (64QAM 4GBaud).