▪ High-Power Semiconductor Optical Amplifier ▪ High-power, polarization-insensitive SOA with different structure ▪ bulk: suitable for production due to small strain & large tolerance in width control ▪ QW: highest P sat f of +20 dBm & low PDG in wide wavelength range ▪ QD: at developing stage but potential for pattern-effect-free amplification ▪ High-power, polarization-insensitive SOA with GaInNAs / InP ▪ low-gain-tilt and potential for high-power, polarization-insensitive L-band SOA ▪ High-power, polarization-insensitive SOA module by incorporating compressively-strained-QW SOA in polarization-diversity configuration ▪ high P sat f of +22 dBm & flat gain for 4ch CWDM signals ▪ Ultra-high-power SOA with novel waveguide structure ▪ SCOWA: Watt-class SOA with low NF