Title :
Performance evaluation of strongly filtered asymmetric 42.7 Gb/s coherent 50%RZ-BPSK system
Author :
Olubodun, O.A. ; Murray, Neil J. ; Harper, P. ; Doran, N.J.
Author_Institution :
Coll. of Eng., Univ. of Swansea, Swansea, UK
Abstract :
We show, by numerical simulation, that the impact of tight optical filtering in high speed coherent 50% RZ-BPSK systems can be greatly reduced by offsetting the filter (equivalent to laser detuning). We show that by offsetting the filter by up to half the filter bandwidth, that system performance is improved by > 2.5 dB in the calculated `Q´ for an OSNR of 12 dB.
Keywords :
band-pass filters; optical fibre networks; optical filters; phase shift keying; bit rate 42.7 Gbit/s; coherent binary phase shifted keying; gain 12 dB; gain 2.5 dB; numerical simulation; optical band pass filter; optical filtering; performance evaluation; return-to-zero signal formats; strongly filtered asymmetric coherent RZ-BPSK system; Band-pass filters; Bandwidth; Binary phase shift keying; Optical filters; Optical noise; Signal to noise ratio; Coherent Binary Phase Shift Keying; Optical Band Pass Filter; Return to Zero signal formats;
Conference_Titel :
Transparent Optical Networks (ICTON), 2013 15th International Conference on
Conference_Location :
Cartagena
DOI :
10.1109/ICTON.2013.6603000
