کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
849968 | 909277 | 2014 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Electrical nonlinearity pre-compensation for CO-OFDM system Electrical nonlinearity pre-compensation for CO-OFDM system](/preview/png/849968.png)
An electrical nonlinearity pre-compensation (ENPC) combined nonlinearity with chromatic dispersion method is introduced for coherent optical orthogonal frequency-division multiplexing (CO-OFDM) system. Comparing with existed only nonlinearity pre-compensation (NL Pre-comp) method, ENPC method is not only suitable for low-dispersion fiber system, but also effective for high dispersion fiber transmission system without optical dispersion compensation. For 40 Gbit/s 20 × 80 km standard single mode fiber (SSMF) system, ENPC method can improve the nonlinear threshold (NLT) (for Q > 10 dB) about 2.7, 1.2, and 1.0 dB, and the maximum Q factor about 1.2, 0.4, and 0.3 dB for 2, 8, and 16 ps/nm/km fiber systems, respectively. The method allow the CO-OFDM system can avoid using optical dispersion compensation even for high dispersion fiber system with higher input power, and the 2-step ENPC solution does not increase more computation complexity compared with NL pre-comp method.
Journal: Optik - International Journal for Light and Electron Optics - Volume 125, Issue 2, January 2014, Pages 616–619