Laser frequency translation: A new method

Matthew Poelker, Prem Kumar, Seng Tiong Ho

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


We demonstrate how the frequency of a single-mode cw dye laser can be translated by 1.772 GHz using stimulated Raman scattering in sodium vapor. The output of a sodium Raman laser, the frequency-translated beam, is shown to be highly correlated in frequency with the dye-laser pump beam. The bandwidth of the 1.772-GHz heterodyne beat signal between the two beams is found to be as narrow as 440 Hz, much narrower than the root-mean-square frequency jitter (-1 MHz) of the dye-laser pump beam. The Raman laser method can be used with materials other than sodium, such as cesium or magnesium, to obtain frequency translations of a magnitude that may not be easily attainable with acousto-optic or electro-optic techniques.

Original languageEnglish (US)
Pages (from-to)1853-1855
Number of pages3
JournalOptics Letters
Issue number23
StatePublished - Dec 1 1991

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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