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Fiber nonlinearity compensation for CO-OFDM transmission with 10.7-Gb/s NRZ-OOK neighbors
| Content Provider | Semantic Scholar |
|---|---|
| Author | Deng, Mingliang Yi, Xingwen Zhang, Jian-Qi Zhang, Hongbo |
| Copyright Year | 2012 |
| Abstract | Fiber nonlinearity limits the use of coherent optical orthogonal frequency division multiplexing (CO-OFDM) to upgrade wavelength-division multiplexing (WDM) systems using legacy non-return-to-zero-on-off-keying (NRZ-OOK) channels. This letter proposes to compensate for the fiber nonlinearity of CO-OFDM with NRZ-OOK neighbors by combining digital signal processing (DSP)-based self-phase modulation (SPM) post-compensation with pilot-tone-based cross-phase modulation (XPM) compensation. The simulation results demonstrate that the optimum low-pass filter bandwidth for pilot-tone-based XPM compensation depends on the pilot-to-signal ratio value and launch optical power. Our method allows a 4-dB increase in the launch power for a 40-Gb/s single polarization CO-OFDM channel placed in the middle of six 10.7-Gb/s NRZ channels in a 50-GHz space and 1 200-km WDM system. |
| Starting Page | 110602 |
| Ending Page | 110602 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| Volume Number | 10 |
| Alternate Webpage(s) | http://opticsjournal.net/ViewFull0.htm?aid=OJ121009000286WsZv2y |
| Alternate Webpage(s) | http://www.opticsjournal.net/ViewFull0.htm?aid=OJ121009000286WsZv2y |
| Alternate Webpage(s) | http://col.opticsx.org/viewFull.aspx?id=COL201210110602-04 |
| Alternate Webpage(s) | https://doi.org/10.3788/col201210.110602 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
