Table of Contents

 1     Scope          
 2     References
 3     Definitions
        3.1     General definitions    
        3.2     Mechanical characteristics      
        3.3     Glass geometry characteristics              
        3.4     Optical characteristics              
        3.5     Others            
 4     Abbreviations and acronyms             
 5     Conventions            
 6     Test methods          
        6.1     Test methods for the mode field diameter      
        6.2     Test methods for the cladding diameter, core concentricity error and cladding non‑circularity     
        6.3     Test methods for the cut-off wavelength         
        6.4     Test methods for attenuation
        6.5     Test methods for chromatic dispersion             
        6.6     Test methods for macrobend loss        
        6.7     Test methods for proof testing             
Annex A – Chromatic dispersion fitting    
        A.1     General          
        A.2     Definition of equations and fitting coefficients              
        A.3     Fitting procedure       
Appendix I – Methods of cut-off wavelength interpolation    
        I.1                  Limited negative error method 
        I.2                  Least squares method  
        I.3                  Example              
Appendix II – Test method for measuring longitudinal uniformity of chromatic dispersion based on the backscattering technique    
       II.1     General           
       II.2     Test apparatus              
       II.3     Measurement procedure         
       II.4     Presentation of the results      
Appendix III – Example of a matrix model    
Appendix IV – Test methods for measuring coherent MPI in short  optical fibre cables (jumpers)    
       IV.1     First test method: The narrowband ECL/PM technique              
       IV.2     Second test method: The wideband LED/OSA technique           
       IV.3     Third test method: The fibre stretching technique       
Appendix V – The interferometric technique for chromatic dispersion measurement    
        V.1     General          
        V.2     Test apparatus            
Bibliography