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

International audience 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.

Bibliographic Details
Main Authors:	Bramerie, Laurent, Lobo, Sébastien, Gay, Mathilde
Other Authors:	Institut des Fonctions Optiques pour les Technologies de l'informatiON (FOTON), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT)-Centre National de la Recherche Scientifique (CNRS)
Format:	Conference Object
Language:	English
Published:	HAL CCSD 2021
Subjects:	[SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic DML
Online Access:	https://hal.science/hal-03329710 https://hal.science/hal-03329710/document https://hal.science/hal-03329710/file/OFC2021_PAM4-IFOTON-poster.pdf

Description
Summary:	International audience 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.