[1] Shieh W, Bao H, Tang Y. Coherent optical OFDM: theory and design[J]. Optics Express, 16, 841-859(2008). http://europepmc.org/abstract/MED/18542158

[2] Armstrong J. OFDM for optical communications[J]. Journal of Lightwave Technology, 27, 189-204(2009).

[3] Xu Z P, Tan Z W, Yang C C. Eigenvector basis expansion-based phase noise suppression method for CO-OFDM system[J]. IEEE Photonics Technology Letters, 29, 1124-1127(2017). http://ieeexplore.ieee.org/document/7932485/

[4] Yi X W, Shieh W, Ma Y R. Phase noise effects on high spectral efficiency coherent optical OFDM transmission[J]. Journal of Lightwave Technology, 26, 1309-1316(2008).

[5] Palais J C[M]. Fiber optic communications, 357-395(2009).

[6] Jansen S L, Morita I. Schenk T C W, et al. Long-haul transmission of 16×52.5 Gbits/s polarization-division-multiplexed OFDM enabled by MIMO processing (Invited)[J]. Journal of Optical Networking, 7, 173-182(2008). http://www.opticsinfobase.org/jocn/abstract.cfm?id=149882

[7] Hong X Z, Hong X J, He S L. Linearly interpolated sub-symbol optical phase noise suppression in CO-OFDM system[J]. Optics Express, 23, 4691-4702(2015). http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-23-4-4691

[8] William S, Djordjevic I[M]. OFDM for optical communications, 1-209(2011).

[9] Kang S Y. Research on phase noise compensation algorithm in large line width CO-OFDM system[D]. Hangzhou: Zhejiang University of Technology, 10-49(2017).

[10] Ren H L, Kang S Y, Lu J et al. Blind phase noise compensation in large linewidth coherent optical orthogonal frequency division multiplexing systems[J]. Acta Optica Sinica, 37, 0106005(2017).

[11] Lee M K, Lim S C, Yang K. Blind compensation for phase noise in OFDM systems over constant modulus modulation[J]. IEEE Transactions on Communications, 60, 620-625(2012). http://ieeexplore.ieee.org/document/6111189/

[12] Yi X W, Shieh W, Tang Y. Phase estimation for coherent optical OFDM[J]. IEEE Photonics Technology Letters, 19, 919-921(2007).

[13] Shieh W. Maximum-likelihood phase and channel estimation for coherent optical OFDM[J]. IEEE Photonics Technology Letters, 20, 605-607(2008). http://ieeexplore.ieee.org/document/4475236/

[14] Le S T, Kanesan T, Giacoumidis E et al. Quasi-pilot aided phase noise estimation for coherent optical OFDM systems[J]. IEEE Photonics Technology Letters, 26, 504-507(2014).

[15] Mousa-Pasandi M E, Plant D V. Zero-overhead phase noise compensation via decision-directed phase equalizer for coherent optical OFDM[J]. Optics Express, 18, 20651-20660(2010). http://www.ncbi.nlm.nih.gov/pubmed/20940960

[16] Ren H L, Cai J X, Ye X et al. Decision-aided ICI mitigation with time-domain average approximation in CO-OFDM[J]. Optics Communications, 347, 1-7(2015). http://www.sciencedirect.com/science/article/pii/S0030401815001856

[17] Ren H L, Cai J X, Lu J et al. Novel iteration-free blind phase noise estimation for coherent optical OFDM[J]. Chinese Optics Letters, 12, 120603(2014). http://www.opticsjournal.net/Articles/Abstract?aid=OJ141119000040TpWsZv

[18] Zhang P, Ren H L, Gao M Y et al. Low-complexity blind carrier phase recovery for C-mQAM coherent systems[J]. IEEE Photonics Journal, 11, 7200214(2019).

[19] Ma J J, Li Z X, Xu Y T et al. Projection histogram assisted common phase estimation algorithm in coherent optical OFDM system. [C]∥2017 Opto-Electronics and Communications Conference (OECC) and Photonics Global Conference (PGC), July 31-August 4, 2017, Singapore. New York: IEEE, 17373632(2017).

[20] Ma J J, Sun T F, Li Z X et al. Blind phase noise compensation algorithm for CO-OFDM system based on projection histogram[J]. Acta Optica Sinica, 38, 0406001(2018).

[21] Fang X, Yang C C, Zhang F. Time-domain maximum-likelihood channel estimation for PDM CO-OFDM systems[J]. IEEE Photonics Technology Letters, 25, 619-622(2013). http://ieeexplore.ieee.org/document/6458984/

[22] Liang M, He J C, Gong J M et al. Simulation and study for coherent OFDM system based on the OptiSystem[J]. Optical Communication Technology, 35, 41-44(2011).