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随着低损耗光导纤维和长寿命半导体激光器的研制成功,光纤通信于八十年代初正式进入商用阶段,短短十几年的时间,以其通信容量大、中继距离长、保密性好、抗干扰能力强等独特优点,得到了迅猛发展,工作模式由多模到单模,使用波长由08～0.9um短波长发展到1.0～1.6um的长波长区域,传输制式由准同步的PDH到SDH同步序列。从而使光纤中继距离由几公里到上百公里,传输速率达10Gbit/s以上,已成为电信网的主要传输手段。整个电信网络的光纤化已成必然趋势。
With the successful development of low loss optical fibers and long-life semiconductor lasers, optical fiber communication officially entered the commercial stage in the early 1980s. With its large communication capacity, long relay distance, and good confidentiality, Strong anti-interference ability and other unique advantages, has been the rapid development of the working mode from multi-mode to single-mode, the use of the wavelength from 08 ~ 0.9um short wavelength to 1.0 ~ 1.6um wavelength region, the transmission standard from the PDH to the synchronization SDH synchronization sequence. So that the optical fiber relay distance from a few kilometers to hundreds of kilometers, the transmission rate of 10Gbit / s above, has become the telecommunications network’s main means of transmission. The entire telecommunications network fiber has become the inevitable trend.