2026-04-17T03:51:57Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/192692026-02-06T03:31:46Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Chochol, M. author Fàbrega Sánchez, Josep Maria author Svaluto Moreolo, Michela author Junyent Giralt, Gabriel author 2012 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. Peer Reviewed Postprint (published version) Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fibra òptica Optical communications Computer networks Coherent detection Filter cascading flex grid Optical OFDM Phase modulation WDM Comunicacions òptiques Ordinadors, Xarxes d' Optical filter cascading effects in a phase modulated coherent optical OFDM transmission system based on Hartley transform