DAC-less and DSP-free 20 Gb/s PAM-4 transmission based on a dual modulation scheme using DML and external modulation

Laurent Bramerie (1) , Sébastien Lobo (1) , Mathilde Gay (1)

1 FOTON - Institut des Fonctions Optiques pour les Technologies de l'informatiON

The generation of DAC-less 20 Gb/s PAM-4 using a DML and an external modulator is demonstrated. This dual modulation scheme has been transmitted up to 75-km SSMF with similar performance to PAM-4 DAC transmitter.

Domaines: Optique / photonique

Laurent Bramerie, Sébastien Lobo, Mathilde Gay. DAC-less and DSP-free 20 Gb/s PAM-4 transmission based on a dual modulation scheme using DML and external modulation. Optical Fiber Communication Conference (OFC 2021), Jun 2021, San Francisco (virtual), United States. ⟨hal-03329710⟩