With the development of computer technology to a trillion times or higher, the processor speed has exceeded the transmission speed, which creates a technical bottleneck in the application field and hinders the further development of the application  Anyone who has tried to dial-up the Internet to watch streaming videos will know that no matter how fast the processor is, it can't improve the file loading speed  In today's big data and cloud computing, there is a large amount of information interacting between servers  A kind of laser device, vertical cavity surface emitting laser, can be used to transmit data at high speed in optical fiber network
The technology of high-speed data transmission has not made a substantial breakthrough for a long time
 Compared with the traditional cable system, it can transmit a larger amount of data at a faster speed