Cloud native EDA tools & pre-optimized hardware platforms
Synopsys is a leading provider of electronic design automation solutions and services.
Synopsys is a leading provider of high-quality, silicon-proven semiconductor IP solutions for SoC designs.
Synopsys helps you protect your bottom line by building trust in your software¡ªat the speed your business demands.
This example shows that coherent PM-QPSK offers a pre-FEC 2 dB sensitivity improvement over RZ-DQPSK and 1.3 dB improvement over DPSK systems.
The figure below depicts the OptSim layout for coherent PM-QPSK:
The figure below depicts the layout for RZ-DQPSK:
The figure below depicts the layout for DPSK:
The figure below compares OSNR sensitivities of coherent and non-coherent systems as above. As can be seen, coherent PM-QPSK offers a pre-FEC 2 dB sensitivity improvement over RZ-DQPSK and hence can be a viable solution for high bitrate systems.