Hybrid modulation formats for advanced datacommunications

Optical datacommunication links are under active consideration at rates beyond 40 Gb/s, especially at 100 Gb/s. The development of solutions that are compatible with constraints such as low-bandwidth optical sources requires advanced modulation formats. This talk will concentrate on hybrid schemes, for example combining conventional PAM modulation with an orthogonal channel taken from a CAP system. Recent real-time experimental results at 100 Gb/s will be described.