CONTENTS

 1 Scope 
2 References 
3 Definitions  
4 Abbreviations   
5 Fundamental requirements for in-service fibre line testing   
6 Testing and measurement methods           
7 Requirements for in-service fibre line testing          
        7.1 Test light wavelength allocation       
        7.2 Wavelength bandwidth of test light 
        7.3 Requirements for test light cut-off filter        
        7.4 Requirements for measurement equipment  
Appendix I – Japanese experience: Fibre Bragg grating filter-embedded  in an optical connector     
        I.1      Introduction         
        I.2      Structure of filter-embedded connectors   
        I.3      Design and fabrication of chirped FBG filter          
        I.4      Performance of filter-embedded connector           
Appendix II – Japanese experience: Spectral filtering criteria for U-band test light for in-service line monitoring     
       II.1 Introduction           
       II.2 Filtering characteristic of sideband noise of test light
       II.3     References 
Appendix III – In-service fibre line testing for PONs     
      III.1 Fundamental requirements for in-service fibre line testing for PONs