Jean-Luc Augé - IEEE Xplore Author Profile

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We review physical layer models to design and simulate open line systems, enabling vendor interoperability. An open algorithm that takes into account different engineering choices is presented and used to optimize power on a WDM link.Show More
Planning optical networks in a multi-vendor environment calls for open and vendor agnostic simulation tools to compare different scenarios in "what-if?" analysis and determine the best performing solution. The PSE-Group in the Telecom Infra Project aims to facilitate network planning based on GN-model and parametrized engineering.Show More
Openness and interoperability are a challenge in optical networks, especially when it comes to lightpath optical performance estimation. We propose to use a vendor-agnostic open-source tool and extend the OSPF-TE protocol with the required parameters.Show More
To reduce network infrastructure cost, network operators want to integrate interoperable and open transponders, since these transponders allow application of the latest technologies over legacy networks at a competitive price. This process of using third-party transponders in a given network is commonly called "alien wavelength" support. Yet, moving toward interoperability raises several challenge...Show More
The TIP PSE working group aims at validating the GN-Model in large scale testbeds, provided by facebook, Microsoft, Orange, Telefonica and UTD to use it as foundation for a vendor-independent open-source planning and engineering tool.Show More
We experimentally demonstrate using commercial equipment how performance predictions based on the GN-model may fail on side channels because of SRS, and demonstrate the effectiveness of the GGN-model including distributed SRS effects in NLI estimation.Show More
To effectively operate multivendor disaggregated networks, the performance of the physical layer needs to be assessed by a quality-of transmission estimator (QoT-E) delivering quick results with a given reliability range. Current state-of-the-art wavelength-division-multiplexing channels are based on multilevel modulation formats relying on DSP-operated coherent receivers, propagating on uncompens...Show More
The exponential traffic growth in optical networks has triggered the evolution from Fixed-Grid to Flex-Grid technology. This evolution allows better spectral efficiency and spectrum usage over current networks in order to facilitate dynamic and huge traffic demands. The integration of Flex-Grid technology increases the number of optical channels established over optical links, leading, however, to...Show More
Flex-grid technology is an effective means to improve the spectral efficiency of optical communication. For a given amplifier spectral bandwidth, it gives rise to the increase in the number of optical channels as it reduces channel spacing. Therefore, in order to reap full benefits from the flex-grid saved spectrum, further amplification power is required with respect to conventional fixed grid. T...Show More
Flexgrid technology is an interesting solution to improve network capacity. However, for a given spectral band, it gives rise to the increase of the number of channels, requiring more amplification power in respect with the conventional fixed grid technology. In this work, we demonstrate that re-engineering the link margins allows supporting this increase while keeping in use legacy amplifiers.Show More
Spectrum Fragmentation (SF) is considered as a drawback of Gridless Technology (GT). In this paper, we study the impact of SF in a specific incremental traffic scenario and show to what extent anticipating traffic growth can reduce this impact and improves the spectrum usage for next generation of transponders. Numerical results indicate that SF is a real effect of GT but does not compromise GT ad...Show More
The introduction of bit rate variable transceivers is expected to improve network reconfiguration and optimization. The different network margins are discussed along with the related strategies to reduce them.Show More
This special issue contains a collection of invited and contributed papers on low-margin optical networks by operators, equipment vendors, and academic research labs.Show More