Intership : Caractérisation de Transmetteurs

Join us in creating the technology that helps the world act together We are a B2B technology innovation leader pioneering the
future where networks meet cloud. At Nokia you will have a positive impact on people’s lives and help build the capabilities needed for a more productive, sustainable, and accessible world.

Be part of a culture built on an inclusive way of working where we are open to your ideas, you are empowered to take risks and are encouraged to be fearless in bringing your authentic self to work.

Apprenticeship for a student enrolled in a French Engineering School or a French university

Characterisation of Transmitters, based on Integrated Photonic Circuits on InP.

Context

The evolution of communication networks has to cope with the continuous introduction of new services. These require high bandwidth, for a growing number of users (with a high number of connected devices): fifth generation mobile networks (5G), virtual reality services, high definition television services, cloud services. This requires the development of new generation optical transceivers operating at very high speeds. In particular, for data centres and optical access networks, significantly improved performance must be achieved for compact and manufacturable components with low production costs.

The team

The apprenticeship takes place in the Advanced Photonic Integration group of III-V Lab, which is composed of 11 people. The team's activity focuses on the design and characterisation of integrated photonic circuits (PICs) for the realisation of transmitters and receivers for the new generations of optical networks (access networks, data centres, long-distance communications). The PICs are realized in the III-V Lab, on InP and Silicon-on-Insulator (SOI) platforms. We work on different types of components, such as: lasers, optical amplifiers, electro-absorption modulators, Mach-Zehnder modulators; fast photodiodes.

Mission

The optical transmitters studied will be based on photonic circuits (PICs), realised by monolithic integration on InP: different active (transmission, modulation, amplification) and passive (guiding, multiplexing, filtering) functions will be integrated on the same chip.

The research programme associated with this study will follow the generic integration approach [13], [17], [18]; the basic optical functions are implemented on a set of simple components (the 'building blocks' - BBs), which can be combined to create PICs with more complex functions. The BBs can be parameterised to monitor and adjust their performance. The information on the integration technology and the design rules of the PICs are gathered in a process design kit (PDK).

The activity will be structured as follows:

- Analysis of the performance of active and passive BBs for the creation and updating of the PDK associated with the III-V Lab's PIC platform: centralised database for active and passive test circuits; methods for extracting BB performance indicators; compact modelling of BBs; statistical analysis of performance.
- Characterisation of transmitters built on the III-V Lab PIC platform: static and dynamic properties; transmission up to 50Gbauds.
- Contribution to the design of new generations of PICs to be realized with multi-project runs, on the III-V Lab platform: new generation of test circuits; new generation of very high speed transmitters (50Gbauds-100Gbauds).

Location of this apprenticeship : III-V Lab 1 Av. Augustin Fresnel, 91767 Palaiseau, France

We recruit without ethnic distinction, religion, gender, sexual orientation, or expression, age, marital status, disability.

What we offer
Nokia offers flexible and hybrid working schemes, continuous learning opportunities, well-being programs to support you mentally and physically, opportunities to join and get supported by employee resource groups, mentoring programs and highly diverse teams with an inclusive culture
where people thrive and are empowered. Nokia is committed to inclusion and is an equal opportunity employer Nokia has received the following recognitions for its commitment to inclusion & equality:

- One of the World’s Most Ethical Companies by

Ethisphere
- Gender-Equality Index by Bloomberg
- Workplace Pride Global Benchmark
- LGBT+ equality & best place to work by HRC Foundation

At Nokia, we act inclusively and respect the uniqueness of

people.

Nokia’s employment decisions are made regardless of race, color, national or ethnic origin, religion, gender, sexual orientation, gender identity or expression, age, marital status, disability, protected veteran status or other characteristics protected by law.

We are committed to a culture of inclusion built upon our core value of respect.

Join us and be part of a company where you will feel included and empowered to succeed.