Along with the process of digitization, data processing, storage and transmission have been rapid development. The demand of high bandwidth makes short-distance interconnection has become the bottleneck of system development. Under the influence of loss and crosstalk and other factors, the transmission distance has been limited based on the high bandwidth of the copper electronic interconnection, the cost also increases. And too much cable will increase the weight of system and the complexity of cabling. Compared with electronic interconnection, optical interconnect which based on multimode fiber has the advantages of high bandwidth, low loss, no crosstalk and matching and electromagnetic compatibility etc. so it begin to widely used in high-speed interconnection between cabinets, frames and boards.

Whether it is 4-way integrated transceiver module, or 12-way separated transceiver module, the interconnection between modules are used MTP/MPO ribbon cables of 12 channels. Since the connection through the ribbon cable is the light connection, it has high requires for the cleanliness of the connector and the repeatability of the plug, so that active optical cable which the optical module built into the cable has appeared. Active optical cable achieves interconnection through electrical interface, it greatly extending the distance of the interconnection on the basis of maintaining the electrical interface manufacturing and the use of convenience.