Application
Counting optical frequencies directly
A frequency comb links optical frequencies to a radio-frequency reference, which is what made direct optical frequency measurement practical. Comb-based metrology underpins optical clock comparison, laser stabilisation and precision spectroscopy.
Typical uses
- Comparing and characterising frequency standards.
- Stabilising a continuous-wave laser against a comb line.
- Precision spectroscopy where the absolute frequency, not just the lineshape, is the measurement.
- Distributing a frequency reference across an experiment.
Building a metrology chain?
Tell us the reference, the target wavelength and the stability you need to reach.