Optical FSK transmission system using a phase-diversity receiver
1987
A coherent optical transmission system has been demonstrated using commercial DFB lasers as both transmitter and local oscillator. A receiver sensitivity of ?51.8dBm was measured at a data rate of 140Mbit/s. The system employs FSK modulation and a three-port, phase-diversity receiver. The effect of source linewidth on receiver bandwidth requirements has been examined.
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