Internship Photonic Integrated Circuits Characterization H/F - 92

Quandela is a European start up that provides photonic quantum computers that are modular, scalable, energy-efficient and accessible both on the cloud and on premise.

Our team of 85 employees, specialises in the development of both software and hardware solutions for a variety of quantum applications. We offer a wide range of services, from developing the most efficient and brightest single photons sources, to creating algorithms for quantum computers and providing cloud quantum computing solutions.

Quandela plays a pivotal role as a strategic partner in the quantum transformation of industrial sectors such as energy, finance, pharmaceuticals, and transportation. Furthermore, we are esteemed collaborators within the academic and research community.

- Following a successful €50 million fundraising in 2023, we are now scaling up our commercial ventures alongside our ongoing research endeavors.
- Quandela has been chosen to participate in the French Tech 2030 program, which aims to bolster French companies pioneering groundbreaking innovations.Quandela stands as a global leader in quantum computing, driven by groundbreaking technology and a strategic vision for scaling quantum solutions. The company's unique ability to offer both hardware and software solutions, along with its commitment to build energy efficient datacenters and scalability, positions it to play a key role in the next wave of innovation, and in many strategic and sovereign industrial sectors.

Join Us at the Forefront of Quantum Computing Innovation

Description of the Team

The internship will be conducted in the Photonic Integrated Circuits (PICs) department of Quandela. The PICs team works on the production and development of the optical processors of Quandela quantum computers, having in mind performance and scalability. In detail, the team members carry out electromagnetic and thermal simulations to estimate the performance of the integrated components, prepare PICs layouts to be fabricated in collaboration with external foundries, and take care of both the characterization and the packaging of the fabricated devices.

Your Key Responsibilities

You will work on the characterization of the integrated photonics building blocks that will be used in the next generation quantum photonic processors of Quandela.

In detail, the characterization will involve the measurement of the main properties of components such as straight waveguides, directional couplers, polarization integrated splitters/rotators, spot-size converters, thermo- and electro-optic phase shifters in different materials such as SiN and LNOI. The activity could involve CAD design with commercial software, and coding with Python for instrumentation control and data analysis.

Depending on your previous experience and on the duration of the internship, you will be responsible of some of the following activities:

- Optical probing of PICs with optical fibers, fiber arrays, and lenses
- Electrical probing of PICs by DC and RF probes
- Characterization of PICs performance at cryogenic temperature
- PICs packaging at room and/or cryogenic temperature
- Use of manual and motorized translation stages for precise alignment between PICs and probes
- Use of CW lasers, polarization optics and driving electronics
- Writing of Python scripts for running the measurements and analyzing the retrieved data
- CAD design for fabricating mechanical pieces