Title : 
Transmission of 8??40 Gb/s RZ-DQPSK Signals Over a 401 km Unrepeatered Link
         
        
            Author : 
Cai, J.-X. ; Bakhshi, B. ; Nissov, M.
         
        
            Author_Institution : 
Tyco Telecommun., Eatontown, NJ, USA
         
        
        
        
        
        
            Abstract : 
We successfully transmitted 8x40 Gb/s RZ-DQPSK channels over a 401 km unrepeatered link with 68 dB loss. This was enabled by low loss fiber, high power booster amplifier, and ROPA technology. All channels had >13.5 dB Q-factor after transmission.
         
        
            Keywords : 
Q-factor; differential phase shift keying; optical fibre amplifiers; optical fibre communication; optical fibre losses; optical links; quadrature phase shift keying; telecommunication channels; Q-factor; ROPA technology; RZ-DQPSK signal transmission; bit rate 320 Gbit/s; differential quadrature phase shift keying; distance 401 km; high power booster amplifier; loss 68 dB; low loss fiber; unrepeatered link; Delay; Optical fiber communication; Optical fiber polarization; Optical pumping; Optical transmitters; Phase modulation; Propagation losses; Q factor; Repeaters; Stimulated emission;
         
        
        
        
            Conference_Titel : 
Optical Fiber communication/National Fiber Optic Engineers Conference, 2008. OFC/NFOEC 2008. Conference on
         
        
            Conference_Location : 
San Diego, CA
         
        
            Print_ISBN : 
978-1-55752-856-8
         
        
        
            DOI : 
10.1109/OFC.2008.4528389