Our high speed optoelectronic chips use silicon photonic integrated chips which are fabricated with mature CMOS technology to ensure performance and cost advantages.We have many intellectual properties covering the fields of all fundamental silicon photonic components such as high speed silicon modulators, high speed photodetectors, athermal optical multiplexers/demultiplexers, polarization rotators/splitters, and high efficient fiber to waveguide couplers. They enable us to design freely all the photonic integrated circuits used in datacom and telecom applications such as 200G PSM4, 200G CWDM4, 200G/400G PAM4, and 200G/400G ICTs/ICRs