Fiber is the basic transmission media in optical fiber communication systems. There are some new requirements to optical fiber communication systems due to the increase of information transport demands. There for some new requirements to fiber are rose. Existed variety type of fibers can not compliance those new requirements

so several new types of fiber are developed. Characteristics of G.652D

G.655C and G.656 fiber and its standards are introduced after evolution history of fiber and development background of new types of fiber are described briefly in this paper.