Title :
Investigation of ONU power leveling method for mitigating inter-channel crosstalk in TWDM-PONs
Author :
Han Hyub Lee ; Jong Hyun Lee ; Sang Soo Lee ; Hee Yeal Rhy ; Hark Yoo ; YoonKoo Kwon
Author_Institution :
Opt. Internet Div., ETRI, Daejeon, South Korea
Abstract :
We investigate ONU power leveling methods for mitigating Inter-channel crosstalk of upstream signals in TWDM-PON. 6-dB power dynamic range was archived with maximum 1.4-dB power penalty by adjusting operation current of Tx. The proposed method is thought to be a simple, low-cost solution in comparison with that with a VOA or SOA. Further study is needed for trade-off between crosstalk and eye distortion penalty and how to specify.
Keywords :
adjacent channel interference; optical crosstalk; passive optical networks; wavelength division multiplexing; ONU power leveling method; SOA; TWDM-PON; VOA; eye distortion penalty; interchannel crosstalk mitigation; operation current; upstream signals; wavelength division multiplexing passive optical network; Crosstalk; Modulation; Optical crosstalk; Optical distortion; Optical network units; Optical transmitters; Passive optical networks; Crosstalk; NG-PON2; ONU; TWDM-PON;
Conference_Titel :
Optical Internet 2014 (COIN), 2014 12th International Conference on
Conference_Location :
Jeju
DOI :
10.1109/COIN.2014.6950574
