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PHARAO laser source flight model: design and performances.

T Lévèque1, B Faure1, F X Esnault1

  • 1Centre National d'Etudes Spatiales, 18 avenue Edouard Belin, 31400 Toulouse, France.

The Review of Scientific Instruments
|April 3, 2015
PubMed
Summary
This summary is machine-generated.

The PHARAO laser source flight model, a compact cesium atomic clock for space, was developed for remote cold atom manipulation. Its performance was validated for space applications.

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Area of Science:

  • Atomic, Molecular, and Optical Physics
  • Space Science and Technology

Background:

  • The PHARAO instrument is a laser-cooled cesium atomic clock designed for space missions.
  • The laser source is a critical subsystem for enabling cold atom manipulation in space.

Purpose of the Study:

  • To describe the design and performance of the PHARAO laser source flight model.
  • To detail the challenges and technologies for a spaceborne laser system.

Main Methods:

  • Design and development of a compact, low-power, wide-temperature range laser system.
  • Integration and testing of the remote-controlled laser source for space constraints.
  • Qualification process including verification of characteristics in operational conditions.

Main Results:

  • Successful design and qualification of the first remote-controlled laser system for spaceborne cold atom manipulation.
  • Demonstration of mechanical compatibility with space constraints (compactness, power, temperature, vacuum).
  • Verification of laser source characteristics and their impact on clock performance.

Conclusions:

  • The PHARAO laser source flight model meets the stringent requirements for spaceborne atomic clocks.
  • The developed technologies enable advanced cold atom manipulation for future space missions.
  • The validated performance ensures the reliability of the PHARAO clock in operational conditions.