As an alternative test method for attenuation of class B fiber in GB/T 15972.40

spectral attenuation model method is not widely used yet. In this paper

we collected 181 disk G.652.D fibers from different manufacturers

and measured the attenuation spectrum data of the fibers by using pk2200. Then

we calculated several attenuation model matrices

and analyzed the accuracy of those matrices. The result show that the spectral attenuation model constructed by 181 disks optical fiber has a relative high precision. and the accuracy of 1310

1383

1550

1625 nm matrix is the highest

which is suitable for commercial environment.