Research engineer in physics and optoelectronics (M/F) -Project TranStab
General informations:
Contract duration: 12 months
Quota of work: Full time
Hiring date (expected): 15/01/2025
Diploma required and desired experience: PhD or Engineering degree in physics / electronics / instrumentation
Indicative remuneration: approx. €2300 net per month
Workplace: Laboratoire de Physique des Lasers / Institut Galilée / Université Sorbonne Paris Nord – 99 Av Jean-Baptiste Clément – 93430 VILLETANEUSE
Context:
The TranStab project (supported by ANR) brings together two academic laboratories (LPL/CNRS-USPN and Institut FOTON/CNRS-UR) and an industrial company (Thales TRT) over a three-year period to design and demonstrate compact devices for transferring stability from an optical frequency reference at 1.5 µm to wavelengths of interest ranging from the near IR to the visible. The aim is to meet the growing need for stable laser sources in both research and industry for applications in high-sensitivity detection and quantum technologies.
The approach developed in TranStab involves stabilizing a fibre-optic interferometer on a reference, then locking one or more ‘target’ lasers onto this transfer device at other wavelength(s).
As part of the project, the LPL will study an first architecture based on a ring cavity. The expected level of stability is in the 10-15 range for stability transfer in the C+L band [1].
A second architecture allowing extended transfer down to 1µm will use wavelength multiplexing couplers at the cavity input. The use of fibre components developed for the optical telecommunications market will make these devices compact and transportable.
These transfer tools will be characterized for near transfer (<30 GHz) by directly measuring the beatnote between the reference and the target laser. They will be characterized for long-range transfer by comparing the performance of two identical prototypes. These tests will enable us to check compliance with the specifications and identify the physical phenomena limiting transfer.
Missions:
The candidate will be part of the Embedded Metrology team of the Metrology, Molecule and Fundamental Tests division of the Laser Physics Laboratory (UMR7538). He/she will work under the supervision of Vincent Roncin (MCF, HDR) and Frédéric Du-Burck (Pr Emeritus) as part of the TranStab project (ANR 2024-2027 funding).
The candidate will be responsible for monitoring the project and organizing all experimental developments:
1) Production of prototype cavities using the two architectures described above,
2) Characterization of their metrological performance.
Skills:
The candidate should have knowledge of physics, photonics and fibre devices, laser instrumentation, as well as notions of analogue electronics and signal processing (modulation and detection).
He/she should have a taste for experimentation and teamwork, project management (reporting, organization and management of meetings), and be punctual, available and highly motivated for his/her project.
Context of work:
The candidate will be responsible for monitoring the progress of prototypes produced at the LPL in the mechanical and electronics workshops. He/she will be responsible for implementing and characterizing them.
Constraints and risks:
The candidate will be required to travel to various locations inherent to a collaborative research project, such as project reviews and technical visits to project partners.
Supplementary information:
Closing date for the receipt of applications: 15/01/2024
Contact : Dr. Vincent RONCIN (MCF-HDR), project manager TranStab
Application: CV and covering letter to Dr. Vincent RONCIN
See the offer here