Title : 
Automatic 
  
 -Control With Offset Compensation in DFB Intradyne Receiver for udWDM-PON
 
        
            Author : 
Tabares, Jeison ; Polo, Victor ; Cano, Ivan ; Prat, Josep
         
        
            Author_Institution : 
Dept. of Signal Theor. & Commun., Univ. Politec. de Catalunya, Barcelona, Spain
         
        
        
        
        
        
        
        
            Abstract : 
A complete automatic wavelength control for digital coherent receivers, which performs local laser tuning and feedforward frequency offset compensation, is presented. We demonstrate the feasibility of the concept in a 1.25-Gb/s differential phase-shift keying intradyne system, achieving accurate performance with common DFB lasers for cost-efficient optical access networks.
         
        
            Keywords : 
laser tuning; optical modulation; optical receivers; passive optical networks; phase shift keying; telecommunication control; wavelength division multiplexing; DFB intradyne receiver; DFB lasers; automatic λ-control; automatic lambda-control; automatic wavelength control; differential phase-shift keying intradyne system; digital coherent receivers; feedforward frequency offset compensation; laser tuning; optical access networks; passive optical networks; udWDM-PON; ultra-dense wavelength division multiplexing; Adaptive optics; Bit error rate; Frequency estimation; Optical receivers; Optical transmitters; Tuning; Coherent detection; Differential phase shift keying (DPSK); differential phase shift keying (DPSK); digital signal processing (DSP); frequency estimation; wavelength tuning;
         
        
        
            Journal_Title : 
Photonics Technology Letters, IEEE
         
        
        
        
        
            DOI : 
10.1109/LPT.2014.2377095