Uncooled 1.55μm electro-absorption modulated laser at 28Gb/s with high power and low Vpp for datacom

We present an uncooled 28Gb/s 1.55μm electro-absorption modulated laser, based on semi-insulating buried heterostructure waveguide technology. With only 0.9V peak-to-peak voltage, dynamic extinction ratio of more than 3.5dB, and facet average output power above 5dBm are demonstrated over the temperature range from 20 to 70°C.