Coherent receivers: Principles and real-time implementation

■We discussed hardware options and basic aspects of the implementation of digital signal processing ■We discussed the implementation aspects of some coherent receiver algorithms ■We demonstrated a real-time implementation of an intradyne receiver at 10 GBit/s (synchronous sampling) and 5 GBit/s (4-fold oversampling) Coherent receivers are still in its infancy in optical communication systems. There is much more to come.