Space division multiplexing (SDM) is a technology that uses spatial segmentation to realize reuse. With the increasing amount of data generation and the increasing requirements of optical fiber transmission capacity, the development of most dimensions has basically reached the peak and can no longer make a breakthrough. Space division multiplexing technology has become an important research direction to improve its transmission capacity. Space division multiplexing optical fiber is made in one optical fiber by using the multi-dimensional multiplexing principle of space and mode. Theoretically, it can increase the transmission capacity of optical fiber by an order of magnitude, which is expected to solve the data transmission capacity crisis.
In the context of the information age, big data, cloud computing, artificial intelligence, Internet of things, 5g and other industries are developing rapidly, and the growth of digital economy is dazzling, but it also brings the rapid rise of data generation. According to the data of statista, an international authoritative organization, it is estimated that by 2035, the global data generation will reach 2142ZB, entering the explosive growth stage. In this context, the network transmission pressure will increase rapidly, and the requirements of optical fiber transmission capacity will continue to improve. The research of space division multiplexing optical fiber has attracted attention, and the market will usher in development opportunities.
Space division multiplexing optical fiber mainly includes core multiplexing optical fiber and mode multiplexing optical fiber. The representative product of the former is multi-core optical fiber, which is realized by adding multiple single-mode cores in a single optical fiber, and the representative product of the latter is few mode optical fiber, which is realized by increasing the number of transmission modes in one core. Both have their own advantages and disadvantages. The multi-core few mode fiber, which combines the multi-core fiber and few mode fiber technology, can integrate the advantages of the two and greatly improve the optical fiber transmission capacity. It has become an important direction of space division multiplexing fiber research.
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Post time: Nov-19-2021