Optical amplifier for femtosecond frequency comb measurements near 633 nm

M. Vainio (Corresponding Author), M. Merimaa, K. Nyholm

Research output: Contribution to journalArticleScientificpeer-review

8 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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