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Long-term stable single-frequency laser

Licence partner wanted
Especially interesting for
  • spectroscopy
  • astrophysics
  • ultraprecise metrology

Narrow-band lasers with extremely small bandwidths are increasingly being used in spectroscopy and in ultra-precise measurement technologies. Thanks to the coupling (for which a patent application has been filed) to a radio-frequency source with the aid of a frequency comb, PTB has demonstrated an additional, high long-term stability of the optical frequency of better than 5 · 10−15 over several hours for these applications. The resulting narrow-band optical frequency source thus opens up the possibility to carry out optical long-term precision measurements.