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  • Nos activités : Radio frequency

ULISS Cryogenic Sapphire Oscillator

ULISS Cryogenic Sapphire Oscillator (CSO) offers unprecedented frequency stability performance thanks to the exceptional regularity of its heartbeat: a high purity sapphire crystal placed at low temperature in a controlled environment.

Technical specifications:

  • Standard frequency outputs 10 GHz et 100 MHz
  • Options : 10 MHz ou 5 MHz
  • System equipped with water and a compressor cooled by water or air
  • 115 or 220 Vac, 50 Hz or 60 Hz single phase
  • Power requirements: 4kW 220V @50Hz single phase
  • Operation without any user intervention or maintenance anymore regularly than once per year

Performance:

Oscillator frequency:
Deviation Allan 1 s <τ < 10,000 s ≤ 3 x 10-15
Phase Noise 1 Hz offset

10 HZ

100 HZ

1,000 Hz

10,000 Hz

– 100 dBc/Hz

– 110 dBc/Hz

– 115 dBc/Hz

– 127 dBc/Hz

– 130 dBc/Hz

10 GHz :
Deviation Allan 1 s <τ < 10,000 s ≤ 3 x 10-15
Phase Noise 1 Hz offset

10 HZ

100 HZ

1,000 Hz

10,000 Hz

– 100 dBc/Hz

– 110 dBc/Hz

– 115 dBc/Hz

– 127 dBc/Hz

– 130 dBc/Hz

100 MHz :
Deviation Allan τ = 1 s

10 s <τ < 1,000 s

4 x 10-15

≤ 3 x 10-15

Phase Noise 1 Hz offset

10 HZ

100 HZ

≤ 1,000 Hz

– 130 dBc/Hz

– 140 dBc/Hz

– 149 dBc/Hz

– 153 dBc/Hz

10 MHz (optional) :
Deviation Allan 1 s <τ < 10,000 s

10 s <τ < 10,000 s

8 x 10-15

≤ 3 x 10-15

A 5 MHz (option) :
Deviation Allan τ = 1 s

τ = 10 s

100 s <τ < 10,000 s

1.2 x 10-14

4 x 10-15

≤ 3 x 10-15

Scientific expertise:

Our work on the field of cryogenic oscillators was initiated 20 years ago, in the former Laboratoire de Physique et de Métrologie des Oscillateurs (LPMO) which becomes the Time and Frequency Department of the FEMTO-ST Institute at its creation in 2004.

Thecryogenic sapphire oscillator development in our laboratory has been successively supported by the space French agency (CNES), the DGA, the LNME and the Région of Franche-Comté.This activity gave rise to number of original results described in the bibliography.

The ELISA project funded by ESA represents the outcome of all these efforts: the objective set by ESA was plenty fulfilled and we demonstrated for the first time the possibility to use a cryocooler while maintaining a state-of-the-art frequency stability.

ULISS is the new generation of CSO, specially designed to be transportable and incorporating newly developed electronic controls.

 

Download DATA-SHEET

BIBLIOGRAPHY : HERE

Applications :

  • Geodesy
  • Space navigation
  • Radioastronomy
  • Metrology for primary labs
  • Qualification of industrial oscillators
  • Fundamental physics and special relativity

Références:

  • European Space Agency (ESA)
  • CNES (France)
  • Airbus Defense & Space (Allemagne)
  • Neuchâtel University (Switzerland)
  • Geodetic Observatory Wettzell (Germany)
  • SYRTE, Observatoire de Paris

Services:

  • Equipment available for lease and for sale
  • Installation on site and training
  • Production support
  • Customised after-sales support and services

Others:

Characterization of precision electronic systems

FEMTO ENGINEERING brings you its expertise and advice for your measuring benches: from the design and manufacture of measuring benches

Electronic design

Electronic system design, from circuit to user interface : PCB (Kicad, Eagle), FPGA Xilinx (Vivado), Embedded Linux solution (Buildroot) Software

Femto Engineering | From science to society
15B avenue des Montboucons, 25030 Besançon Cedex – France

  • 03 63 08 24 14
  • contact@femto-engineering.fr

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