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Impact of the Channel Count on the Nonlinear Tolerance in Coherently-detected POLMUX-QPSK modulation
Coherent communications Fiber optics communications
2011/5/26
GPU-based transmission simulations with different channel counts (1~81) are used to determine the minimum required channel number for correctly simulating fiber nonlinearities that impact 40G/100G CP-...
Cycle Slip Mitigation in POLMUX-QPSK Modulation
Cycle Slip Mitigation POLMUX-QPSK Modulation
2011/5/20
We demonstrate a pilot-symbol assisted joint polarization carrier phase estimation technique that detects cycle slip and avoid error propagation. Coherent detection without differential coding is feas...
POLMUX-QPSK modulation and coherent detection:the challenge of long-haul 100G transmission
POLMUX-QPSK modulation long-haul 100G transmission
2009/7/15
The rise of coherent detection and digital signal processing is drastically changing the design of optical transmission systems. In this paper we review the challenges and opportunities offered by suc...