DQPSK Receiver tolerance to transmitter frequency stability


In case of Differential Quadrature Phase Shift Keying transmission, the diode laser frequency instability affects the quality of the received signal. Free-running transmitters are employed to experimentally evaluate the tolerance of the interferometric DQPSK receiver to this instability. Heterodyne measure of the frequency offset is discussed for different… (More)
DOI: 10.1109/ICC.2006.255197


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