Optical amplifier for femtosecond frequency comb measurements near 633 nm

M. Vainio (Corresponding Author), Mikko Merimaa, Kaj Nyholm

    Research output: Contribution to journalArticleScientificpeer-review

    10 Citations (Scopus)


    An optical amplifier operating at the 633-nm wavelength region is designed for absolute frequency measurements of iodine-stabilized He-Ne lasers with an optical femtosecond frequency comb generator. The same setup can also be used in other applications that require relatively high (15 mW) laser powers with good spectral characteristics. Radiation of a master laser is amplified by a microlens-coupled diode laser, which is injection locked to the frequency of the master laser. The amplifier can be reliably operated over several hours with very low phase noise. Optical amplification of more than 39 dB is demonstrated.
    Original languageEnglish
    Pages (from-to)1053-1057
    Number of pages5
    JournalApplied Physics B: Lasers and Optics
    Issue number8
    Publication statusPublished - 2005
    MoE publication typeA1 Journal article-refereed


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