Title :
Optical filter cascading effects in a phase modulated coherent optical OFDM transmission system based on Hartley transform
Author :
Chochol, Marcin ; Fabrega, Josep M. ; Moreolo, Michela Svaluto ; Junyent, Gabriel
Author_Institution :
Centre Tecnol. de Telecomunicacions de Catalunya (CTTC), Castelldefels, Spain
Abstract :
Effects of cascading optical filters are investigated for a phase modulated coherent optical OFDM system based on Hartley transform. The evaluation is performed by means of numeric simulations in a 10 Gb/s system with a total bandwidth of 10 GHz. First a back-to-back (no fiber) case is assessed. Results show a 3 dB power penalty after a single filter of only 68% of the signal bandwidth. The same penalty is achieved when cascading 10 filters of 21.6 GHz bandwidth. Additionally, the penalties associated to the introduction of fiber spans between filters are investigated.
Keywords :
Hartley transforms; OFDM modulation; optical filters; optical modulation; phase modulation; Hartley transform; bandwidth 10 GHz; bandwidth 21.6 GHz; bit rate 10 Gbit/s; optical filter cascading effects; phase modulated coherent optical OFDM transmission system; Bandwidth; Integrated optics; OFDM; Optical fiber filters; Optical fibers; Coherent detection; Filter cascading; Optical OFDM; Phase modulation; WDM; flex grid;
Conference_Titel :
Transparent Optical Networks (ICTON), 2012 14th International Conference on
Conference_Location :
Coventry
Print_ISBN :
978-1-4673-2228-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2012.6253796
