EXFO FastReporter 2 - Manual (Page 369)

Measuring Chromatic Dispersion: Theory
Post Processing Software 359
Using Data Fits to Obtain Dispersion
G.653 DSF
50/125
62.5/125
G.655 NZDSF
1530 nm-1565 nm
Fiber Type and
Wavelength Range
Expression for D
1200 nm  1600 nm  
    A B  C    ln + + =
D    B C C    ln + + =
50nm  1450nm  
    A B 
2
C 
2 –
+ + =
D    2 B  C
3 –
–   =
750nm  1450nm  
    A B 
2
C 
2 –
+ + =
D    2 B  C
3 –
–   =
D   
D 1565   D 1530   –
35
-------------------------------------------------

 1565 –   
 
 
 
D 1565   + =