Research Progress and Development Trend of L+ Band Fiber Amplifier (1600-1650nm)

Abstract

In the twenty-first century of scientific and technological development, with high-speed information processing, a large amount of information transmission and ultra-high-density storage space as the primary communication technology breakthrough target. Especially with the continuous development and advancement of optical fiber technology, optical fiber transmission occupies the primary position in information transmission. With the increasing demand for communication capacity and system expansion in long-distance optical fiber transmission systems, people are making more and more use of optical fiber bandwidth. At present, all of the full-band optical fibers are low-consumption windows, and in order to further develop and promote the field of optical fiber communications, the potential broadband should be used to facilitate people's lifestyles.With the rapid development of information and communication technology, the demand for higher transmission rates and larger capacity in optical fiber communication systems is increasing. As an emerging optical communication band, the L+ band (1600-1650nm) has attracted much attention because of its low fiber loss and high signal transmission capacity. This paper reviews the research progress and development trend of L+ band fiber amplifiers, including the basic principles, key technologies, performance characteristics and applications of optical communication amplifiers in this band. By combing and summarizing the existing research results, the development status and future trend of L+ band fiber amplifiers are revealed, and the potential application prospects of L+ band fiber amplifiers are discussed.