Advances in high-speed ADCs, DACs, and DSP for optical transceivers

We discussed DAC, ADC, and DSP in the context of coherent transceivers We reviewed DAC and ADC technology. We discussed ENOB as a figure of merit. We discussed DAC/ADC performance implications. We showed how the technology can be extended if needed We discussed DSP functions: Equalization; Pulse shaping to increase spectral efficiency and the impact of jitter; Frequency offset compensation, carrier recovery, polarization recovery We explained cycle slips and some possible remedies We showed examples of commercial DACs/ADCs as well as DAC/ADC + DSP monolithic ASICs We looked at forward error correction and how it can affect reach Finally, we put all the above in the context of flexible transceivers to meet increased networks capacity.