Title :
Wavelength reuse in a colourless ONU with all-optical clock recovery for full-duplex dense WDM PONs
Author :
Maziotis, Alexandros ; Schrenk, Bernhard ; Bakopoulos, Paraskevas ; Spyropoulou, Maria ; Lazaro, Jose A. ; Prat, Josep ; Avramopoulos, Hercules
Author_Institution :
Sch. of Electr. & Comput. Eng., Nat. Tech. Univ. of Athens, Athens, Greece
Abstract :
In this paper, an approach of a colourless ONU comprised by a Fabry-Pérot filter and a Semiconductor Optical Amplifier for all-optical clock recovery of the downstream signal, followed by a Mach-Zehnder modulator as the upstream modulator is experimentally demonstrated. The all-optical clock recovery performs data erasure allowing for efficient wavelength reuse of the downstream signal for upstream remodulation. Operation at a full-duplex 10 Gb/s symmetrical data rate and 20 dB loss budget is demonstrated over fiber spans of 50 km with achieved power margin of ~8 dB.
Keywords :
optical filters; optical losses; optical modulation; passive optical networks; semiconductor optical amplifiers; synchronisation; wavelength division multiplexing; Fabry-Perot filter; Mach-Zehnder modulator; all-optical clock recovery; bit rate 10 Gbit/s; colourless ONU; data erasure; distance 50 km; downstream signal; full-duplex dense WDM PON; loss budget; optical network unit; power margin; semiconductor optical amplifier; symmetrical data rate; upstream modulator; wavelength reuse; Bit error rate; Clocks; Modulation; Optical filters; Optical network units; Passive optical networks; Semiconductor optical amplifiers; WDM; clock recovery; passive optical networks; wavelength reuse;
Conference_Titel :
Transparent Optical Networks (ICTON), 2011 13th International Conference on
Conference_Location :
Stockholm
Print_ISBN :
978-1-4577-0881-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2011.5970981
