IEEE transactions on Communications, Volume 43, N°234, February-March-April 1995
We consider an optical communication system where a reference signal is transmitted along with a phase modulated information carrying signal. This system has the potential of alleviating the effect of phase noise considerably. We perform a joint optimization of the receiver bandwidth and the powers of the two signals. The scheme achieves a performance that is close to that of ideal phase modulation systems when the ratio of bit rate to laser linewidth is large, and a performance that is identical to that of frequency modulation when the ratio is small, We also introduce a centered filter structure which achieves a far better performance than traditional filters due to increased the phase coherence.
Type:
Journal
Date:
1995-02-01
Department:
Communication systems
Eurecom Ref:
1051
Copyright:
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