A weak-field homodyne receiver achieves usable mutual information and secret key rates in a QPSK coherent-state optical link with active phase-noise feedback.
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Evaluating the performance of a weak-field homodyne receiver in quadrature phase-shift keying optical communication
A weak-field homodyne receiver achieves usable mutual information and secret key rates in a QPSK coherent-state optical link with active phase-noise feedback.