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一、各种单模光纤的特性比较1996年8月国际电信联盟ITU－T提出了第5个关于光纤方面的建议——G．655建议。5个建议中关于单模光纤的建议有4个。第1种G．652光纤（SMF）：发明于1983年，既可用于1310mn波长区，又可用于1550nm波长区，但由于零色散波长在1310nm附近，因而最适用?
First, the characteristics of a variety of single-mode optical fiber comparison In August 1996, the International Telecommunication Union ITU-T proposed the first five on the optical fiber - G. 655 suggestions. There are 4 suggestions for single-mode fiber in the 5 recommendations. The first one 652 Optical Fiber (SMF): invented in 1983, can be used for 1310mn wavelength region, but also for the 1550nm wavelength region, but because of the zero dispersion wavelength near 1310nm, which is most suitable?