PhD “Photonic Innovations for an Ultra-High-Speed Access Network” M/F

Job title:

PhD “Photonic Innovations for an Ultra-High-Speed Access Network” M/F

Company:

Orange

Job description

about the roleYour role is to conduct a thesis on “Photonic Innovations for an Ultra-High-Speed Access Network.”
The access network has recently shown significant growth due to the massive deployment of Fiber To The Home (FTTH). Market players have already focused on defining the optical technologies that will succeed the currently deployed technology, the “G-PON” standard, by offering ever-increasing speeds to users. These future technologies, such as the 50G-PON, which is already pre-commercial, will not only increase bandwidth but also address the ever-evolving needs of users.
The VHSP (Very High Speed PON) is a concept that encompasses ongoing research efforts within the scientific community for the post-50G-PON access network. The pressure exerted on this segment of the network in terms of interface capacity necessitates rethinking it and potentially making a technological leap towards other families of solutions: PAM4, coherent detection (both “classic” and simplified), the use of physical resources such as frequency division multiplexing (FDM) in the electrical domain, or wavelength division multiplexing (WDM), and classic NRZ at higher speeds… all of which must adapt to the multiple access topology of FTTH. The associated energy consumption is also a significant challenge, as is the ability to maintain interoperability of interfaces, avoid dependence on any particular vendor, and ensure the longevity of deployed passive infrastructures (fibers).The objective of the thesis is to identify technological solutions that can address the previously described challenges and to assess their strengths and weaknesses while ensuring the future interoperability of systems. This will cover several aspects, starting with the setup of an optical transmission bench at 100 Gb/s/channel. This will allow for an understanding of the inherent difficulties of this type of high-frequency transmission: limits of electronics, the need for digital equalization (study of different solutions), non-linear effects (study and quantification of effects), etc., which will be the subject of research axes within the framework of the thesis.about youSkills (scientific and technical) and personal qualities required for the position
You have an interest in experimental and multidisciplinary work.
You enjoy working in a team and know how to share your knowledge and experiences.
You express curiosity about new technologies and their implementations.
You are naturally curious, creative, dynamic, and take initiatives.
You have a basic understanding of signal processing, digital communications, and optical transmissions.
You have good programming skills (Python and/or Matlab).
You are proficient in English (document writing, presentations).Required education (master’s, engineering degree, doctorate, scientific and technical field, etc.)You are pursuing a Bac +5 level education in the following fields: Engineering school or research master’s in Photonics, Optronics, Electronics, or Telecommunications.You have a significant background in all or part of the following areas:-Photonics, optronics
-Electronics
-Optical telecommunications networks and systems
-Testing and measurement of optical transmissionsDesired experiences (internships, etc.)
Internship(s) in a research laboratory.
Experience in setting up optical transmission benches.
Experience in software processing of experimental data (Python and/or Matlab).additional informationYou will work on a rapidly expanding topic within the scientific community, for which the specifications have not yet been standardized, thus allowing you a great deal of freedom in your proposals.
You will also benefit from a particularly well-equipped laboratory featuring cutting-edge technology, as well as a team representing a diverse and enriching range of activities (short/medium/long term) that will allow you to align your work with real-world applications. The partner academic laboratory and associated researchers are located in the city center, facilitating easy access to their equipment, knowledge, and expertise.
Finally, you will be able to rely on the knowledge and prototypes developed within the framework of collaborative European projects in which Orange participates.

departmentOrange Innovation brings together the research and innovation activities and expertise of the Group’s entities and countries. We work every day to ensure that Orange is recognized as an innovative operator by its customers and we create value for the Group and the Brand in each of our projects. With 720 researchers, thousands of marketers, developers, designers and data analysts, it is the expertise of our 6,000 employees that fuels this ambition every day.Orange Innovation anticipates technological breakthroughs and supports the Group’s countries and entities in making the best technological choices to meet the needs of our consumer and business customers.The Innovation Division brings together 6,000 employees dedicated to research and innovation worldwide, including 740 researchers. With a global vision and a diverse range of profiles the women and men of Innovation are attentive and serve the countries, regions, and business units to make Orange a trusted multi-service operator.“Within the Innovation Division, you will be integrated into the FUN (Fixed access and end User local area Network) department, specifically in the FAN (Fixed Access Networks) team, which is responsible for ensuring the updating and sustainability of fixed access networks. The FAN team aims to anticipate and develop new optical access network solutions for residential, business, and mobile fixed services. This includes designing, simulating, and prototyping new optical architectures.”contractThesis

Expected salary

Location

Lannion, Côtes-d’Armor

Job date

Tue, 18 Mar 2025 23:19:34 GMT

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