The deepening of informatization requires the continuous improvement of the bandwidth, latency, rate and other performance of information technology, and the continuous decline in cost and power consumption. However, due to physical characteristics, electronic information technology is faced with many challenges, especially in the dimensions of bandwidth and power consumption. Making full use of the advantages of photons, we propose the convergence of photonics and electronics to enable information photonics playing a pillar role in technology fields such as connection/transmission, routing/switching, computation/processing and so on, and promote human beings from the electronic information age to the photoelectronic information age.