Diddams and colleagues: direct microwave–optical link with a femtosecond frequency comb

What changed

Optical frequencies became directly countable against microwave references with a comb.

Scientific scope

Exact ten-author 2000 PRL; parallel carrier-envelope work, later clock technology and syntheses separate.

Evidence

The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the exact 2000 Physical Review Letters paper. Parallel carrier-envelope work, optical-frequency-synthesizer papers, later comb technologies, clocks and metrological applications remain separate.

Contributors

• The named authors listed in the linked research record · SCIENCE: Complete source byline retained in the research record; this collective display does not merge person identities or measure labor shares.

• Diddams et al., direct microwave–optical link
• Crossref record for femtosecond frequency-comb paper

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

Full scientific record · Browse contribution grades · Request a correction