论文信息 - Spectral efficiency enhancement using coherent WDM with multi-level offset-QAM - 字舞流文

Spectral efficiency enhancement using coherent WDM with multi-level offset-QAM

We propose offset-QAM based CoWDM, and show that the proposed system outperforms no-guard-interval optical OFDM and Nyquist WDM and enables the use of offset 4-, 16-, and 64-QAM with the performance approaching the theoretical limits.

Andrew D. Ellis | Jian Zhao

[1] Xiang Liu,et al. Experimental investigation on the performance of closely spaced multi-carrier PDM-QPSK with digital coherent detection. , 2009, Optics express.

[2] Gabriella Bosco,et al. Performance Limits of Nyquist-WDM and CO-OFDM in High-Speed PM-QPSK Systems , 2010, IEEE Photonics Technology Letters.

[3] Jian Zhao,et al. Electronic Impairment Mitigation in Optically Multiplexed Multicarrier Systems , 2011, Journal of Lightwave Technology.

[4] E. Yamazaki,et al. No-Guard-Interval Coherent Optical OFDM for 100-Gb/s Long-Haul WDM Transmission , 2009, Journal of Lightwave Technology.

[5] A. Ellis,et al. Spectral density enhancement using coherent WDM , 2005, IEEE Photonics Technology Letters.