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Portal > Offres > Offre UMR8630-MOHACE-001 - Ingenieur de recherche en développement de source laser stabilisée en fréquence (H/F)

Research engineer in the development of a frequency stabilized laser source

This offer is available in the following languages:
Français - Anglais

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General information

Reference : UMR8630-MOHACE-001
Workplace : PARIS 14
Date of publication : Tuesday, December 31, 2019
Type of Contract : FTC Technical / Administrative
Contract Period : 16 months
Expected date of employment : 2 April 2020
Proportion of work : Full time
Remuneration : Depending on the candidate's professional experience, the salary will be between 2 470 € and 2 663 € before taxes.
Desired level of education : Higher than 5-year university degree
Experience required : 1 to 4 years


The applicant will participate in the development of an ultra-stable, fibered and transportable frequency stabilized laser source for ground tests of the payload of the LISA (Laser Interferometer Space Antenna) space mission.
This development is supported by the CNES (French space agency), as part of the French activities on the AIVT of the LISA mission.


The applicant will develop, a specific frequency tripling process to bridge the frequency gap between infrared and visible domains. He/she will stabilize the infrared laser on molecular absorption line in the visible. The main activities are:
* Frequency doubling
* Sum frequency
* frequency stabilization
Sedcondary activities:
He/she will particpate to the frequency stability characterization involving femtosecond lasers and cold atomic clocks.


Expertise in :
* Non linear optics
* molecular spectroscopy
* low noise signal analysis
* Frequency stabilization

Work Context

The SYRTE laboratory (UMR 8530) offers a contract engineer position for an initial period of 16 months (which can be extended) to participate in the development of a transportable frequency-stabilized laser source for ground tests of the payload of the LISA (Laser Interferometer Space Antenna), dedicated to the detection of gravitational waves in space. This development is supported by the french space agency (CNES).
LISA is an ESA-led space mission based of 3 separate satellites, 2.5 million km apart, aimed at detecting low frequency gravitational waves. LISA has been selected by ESA (European Space Agency) in 2017, with launching date scheduled for 2034. The mission is currently in Phase A (preliminary definition).
The work will be carried out at the SYRTE laboratory located at the Observatoire de Paris (F-75014).
Based in part on developments previously demonstrated in the laboratory, the new project will use an innovative approach for the laser frequency stabilization purpose. The targeted frequency stability is better than LISA mission requirement which is currently at the level of 30 Hz/√Hz. The architecture of the whole optical setup is designed fully fibered to facilitate its transportation, and to insure long term stability. At the end, the setup will be transferred to the french space agency CNES (Centre National d'Etudes Spatiales), which coordinate activities of LISA-France consortium gathering more than ten french laboratories involved in the AIVT of the LISA mission.

Additional Information

The candidate should be ready to present his/her results to the CNES and the LISA-France Consortium, as well as to international conferences.

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