Title : 
An improved OSNR monitoring technique based on polarization-nulling method
         
        
            Author : 
Lee, J.H. ; Chung, Y.C.
         
        
            Author_Institution : 
Dept. of Electr. Eng., KAIST, Taejon, South Korea
         
        
        
        
        
            Abstract : 
We report on the improved OSNR monitoring technique for WDM networks using the polarization-nulling method. Unlike the previous techniques based on the polarization, the proposed technique was not sensitive to PMD and nonlinear birefringence.
         
        
            Keywords : 
band-pass filters; monitoring; optical beam splitters; optical fibre dispersion; optical fibre filters; optical fibre networks; optical fibre polarisation; optical noise; telecommunication channels; telecommunication network management; wavelength division multiplexing; OSNR monitoring technique; WDM networks; channel; management; nonlinear birefringence; optical ratio; optical signal-to-noise ratio; polarization; polarization-nulling method; Band pass filters; Birefringence; Fiber nonlinear optics; Monitoring; Nonlinear optics; Optical filters; Optical noise; Optical polarization; Signal to noise ratio; WDM networks;
         
        
        
        
            Conference_Titel : 
Optical Fiber Communication Conference and Exhibit, 2001. OFC 2001
         
        
            Conference_Location : 
Anaheim, CA, USA
         
        
            Print_ISBN : 
1-55752-655-9