Title :
Design of a novel wavelength scheme for DWDM-PON coexisting with current PON technologies and protected against signal interference
Author :
Scholtz, Lubomir ; Korcek, Dusan ; Mullerova, J.
Author_Institution :
Inst. of Aurel Stodola, Univ. of Zilina, Liptovsky Mikulas, Slovakia
Abstract :
Permanent demands for increasing bandwidth and the strong competition of other access technologies accelerate instant improvements of PON parameters. On the other hand coexistence with current PON technologies with colorless ONU is still a key issue. This paper deals with future DWDM-PON prospects. A new wavelength allocation scheme of 50 channels (and 100 channels for planned expansion) and of 100 GHz channel spacing for upstream and downstream, coexistence with legacy PONs and signal protection techniques for colorless ONUs are introduced. Tunable narrow wavelength blocking filters for DWDM-PON ONU downstream are presented.
Keywords :
channel spacing; passive optical networks; wavelength division multiplexing; DWDM PON; channel spacing; signal interference; tunable narrow wavelength blocking filters; wavelength allocation scheme; wavelength scheme; Filtering theory; Integrated optics; Optical films; Optical filters; Optical network units; Passive optical networks; Wavelength division multiplexing; 100 GHz channel spacing; DWDM-PON; coexistence; colorless ONU; mature technologies; polarization independent; tunable filters; wavelength plan;
Conference_Titel :
Transparent Optical Networks (ICTON), 2014 16th International Conference on
Conference_Location :
Graz
DOI :
10.1109/ICTON.2014.6876418
