Fourier transform wavemeter

Marja-Leena Junttila, Birger Ståhlberg, Esko Kyrö, Timo Veijola, Jyrki Kauppinen

Research output: Contribution to journalArticleScientificpeer-review

24 Citations (Scopus)


We describe a scanning Michelson interferometer and utilization of fast Fourier transformation in laser wavelength determination. The Fourier transformation method is demonstrated to be particularly powerful in cw multimode (diode) laser investigations and in cw single‐mode laser long‐term frequency stability measurements. An uncertainty less than 10−7 can be concluded from comparisons of a two‐mode polarization stabilized 543‐nm He–Ne laser with an iodine stabilized 633‐nm He–Ne laser.
Original languageEnglish
Pages (from-to)1180-1183
JournalReview of Scientific Instruments
Issue number7
Publication statusPublished - 1987
MoE publication typeA1 Journal article-refereed


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