School of Physics, Engineering and Technology
- School of Physics, Engineering and Technology
- Research and innovation
- Communication technologies
- Projects
- Ultra-low phase-noise atomic frequency references
Ultra-Low Phase Noise Atomic Frequency References (Clocks) Using Coherent Population Trapping In Rubidium Vapour
The aim of this project is to design ultra-stable atomic frequency references (clocks) with improved phase noise and stability characteristics compared to the currently available configurations. The system incorporates a physics package based on Coherent Population Trapping (CPT) in Rubidium (Rb) or Caesium (Cs) vapour for long term stability. A frequency synthesis chain consisting of Ultra-low phase noise Crystal Oscillators (XO) and Dielectric Resonator Oscillators (DRO) is used to achieve a good short term stability and excellent phase noise.
Block diagram of the complete system. The orange block represents the physics package, the blue block shows the laser centre frequency stabilization loop and the green block shows the frequency synthesis chain.
Members
- Tsvetan Burtichelov
- Jeremy Everard
- Eugene Avrutin
Dates
- Start: September 2015
Sponsors
- SELEX-ES
- EPSRC
Research