Assessment of an SOA for Burst Mode Pre-Amplification in Higher Speed PON reaching 30dB of Optical Budget

International audienceWe perform a 30dB optical budget burst mode transmission at 25Gbit/s with an EML and a DC-30GHz PIN pre-amplified with an SOA. We demonstrate that the SOA does not deteriorate the quality of the transmission

Expérimentation d'un amplificateur à semiconducteur et d'un amplificateur à fibre sur un lien montant du Higher Speed-PON

International audienceNous explorons deux techniques d'amplification optique pour le lien montant dans le HS-PON : SOA et PDFA. Une expérimentation à 25Gbit/s en mode rafale (burst) est réalisée avec des performances différentes selon les amplificateurs. Jusqu'à 33dB de budget optique sont atteints

Optical Beat Interference in Burst Mode Upstream Links of the Higher Speed-PON: Situation, Penalties and Solution

International audienceWe perform a 25Gb/s NRZ-OOK burst mode transmission. A beating between two optical sources is detected on a DC-30GHz photodiode and a penalty due to OBI on the BER as high as 2.8dB is experimentally observed. Solutions to reduce the impact of OBI are proposed

Optical Access Network Interfaces for 5G and beyond [Invited]

International audiencePoint to Point (PtP), Wavelength Division Multiplexing (WDM) and Time Division Multiplexing (TDM) optical interfaces are discussed as solutions for backhaul, midhaul and fronthaul networks. The evolution of Radio Access Networks (RAN) for 5G and beyond is introduced and PtP is identified as the most deployed solution with many transceiver technologies available to cover the different needs for each RAN configuration. WDM and TDM interfaces remain of interest when a lack of fiber occurs. WDM technologies are being adapted to answer to this RAN market with the appearance of Medium-WDM (MWDM) and auto-tunable Dense-WDM (DWDM) transceivers. TDM technologies are trying to evolve towards higher bitrates and lower latency to cope with RAN backhaul specifications. A gap in the transceiver technologies is identified for each of those interfaces types and also for bitrates above 25Gbit/s that will impose more complex optics, electronics and integration

32dB of Optical Budget with DSP-free real time experimentation up to 50Gbit/s NRZ using O-band DFB-EAM and SOA-PIN for Higher Speed PONs

International audienceWe achieve 32.3dB of optical budget and 45km reach transmission in real time with an O-band EAM-DFB and SOA-PIN for 50Gbit/s NRZ standards. A DSP-free transmission was demonstrated with a semi-cooled transmitter