Efficient Parallel Carrier Recovery for Ultrahigh Speed Coherent QAM Receivers with Application to Optical Channels

Figure 19

Surface of performance of the P-DPLL + BPS architecture under the joint effect of laser phase noise and frequency fluctuation for several parallelization factors with Δ𝑓_𝑐=35 kHz, 1/𝑇=32 Gs/s, 𝑁=21, and 𝐵=32.

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