Coherence-controlled mm-wave generation using a frequency-shifting recirculating delay line

Cibby Pulikkaseril*, Stephen M. Hanham, Robert Shaw, Robert A. Minasian, Trevor S. Bird

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


A photonic technique based on optical heterodyning for the generation of microwave and millimeter-wave signals is presented in this paper. Coherence control of a comb of time-delayed and frequency-shifted optical signals is used to selectively beat multiple optical signals together to produce a stable, spectrally pure microwave, or millimeter-wave signal. This approach is demonstrated by generating signals at 11.25 and 30 GHz. The linewidth of the generated signal is independent of the linewidth of the optical source employed, and is shown to be less than 100 Hz with sideband suppression >30 dB.

Original languageEnglish
Pages (from-to)1071-1078
Number of pages8
JournalJournal of Lightwave Technology
Issue number7
Publication statusPublished - 1 Dec 2010


  • Microwave photonics
  • Optical millimeter-wave (mm-wave) generation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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