X. Zhou, “An Improved Feed-Forward Carrier Recovery Algorithm for Coherent Receivers With M -QAM Modulation Format,” IEEE Photon. Technol. Lett. 22(14), 1051–1053 (2010).
M. G. Taylor, “Coherent detection method using DSP for demodulation of signal and subsequent equalization of propagation impairments,” IEEE Photon. Technol. Lett. 16(2), 674–676 (2004).
I. Fatadin, D. Ives, and S. J. Savory, “Laser linewidth tolerance for 16-QAM coherent optical systems using QPSK partitioning,” IEEE Photon. Technol. Lett. 22(9), 631–633 (2010).
S. J. Savory, “Coherent detection - why is it back?” in proceedings of the 20th Annual Meeting of IEEE Lasers and Electro-Optics Society,(Institute of Electrical and Electronics Engineers 2007), paper TuH1.
P. J. Winzer, A. Gnauck, S. Chandrasekhar, S. Draving, J. Evangelista, and B. Zhu, “Generation and 1200 km transmission of 448-Gb/s ETDM 56-Gbaud PDM 16-QAM using a single I/Q modulator,” in proceedings of European Conference and Exhibition on Optical Communication (ECOC 2010), paper PD2.2.
X. Zhou, L. E. Nelson, P. Magill, B. Zhu, and D. W. Peckham, “8x450-Gb/s,50-GHz-spaced, PDM-32QAM transmission over 400km and one 50GHz-grid ROADM,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2011), paper PDPB3.
A. H. Gnauck, P. Winzer, A. Konczykowska, F. Jorge, J. Dupuy, M. Riet, G. Charlet, B. Zhu, and D. W. Peckham, “Generation and transmission of 21.4-Gbaud PDM 64-QAM using a high-power DAC driving a single I/Q modulator,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2011), paper PDPB2.
Q. Zhuge, C. Chen, and D. V. Plant, “Low Computation Complexity Two-Stage Feedforward Carrier Recovery Algorithm for M-QAM,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2011), paper OMJ5.
Y. Greshishchev, D. Pollex, S.-C. Wang, M. Besson, P. Flemeke, S. Szilagyi, J. Aguirre, C. Falt, N. Ben-Hamida, R. Gibbins, and P. Schvan, “A 56GS/S 6b DAC in 65nm CMOS with 256×6b memory,” in proceedings of IEEE Solid-State Circuits Conference (ISSCC), pp.194–196, 20–24 Feb. 2011.
I. Dedic, “56Gs/s ADC: Enabling 100GbE,” in proceedings of Optical Fiber Communication, collocated National Fiber Optic Engineers Conference,(OFC/NFOEC), pp.1–3, 21–25 March 2010.
B. Inan, S. Randel, S. L. Jansen, A. Lobato, S. Adhikari, and N. Hanik, “Pilot-tone-Based Nonlinearity Compensation for Optical OFDM Systems,” in Proc. European Conference on Optical Communications (ECOC)2010, paper Tu.4.A.6.