High-power mid-infrared frequency comb source based on a femtosecond Er:fiber oscillator. Academic Article uri icon


  • We report on a high-power mid-infrared (MIR) frequency comb source based on a femtosecond (fs) Er:fiber oscillator with a stabilized repetition rate of 250 MHz. The MIR frequency comb is produced through difference frequency generation in a periodically poled MgO-doped lithium niobate crystal. The output power is about 120 mW, with a pulse duration of about 80 fs and spectrum coverage from 2.9 to 3.6 m, and the single comb mode power is larger than 0.3 W over the range of 700 nm. The coherence properties of the produced high-power broadband MIR frequency comb are maintained, which was verified by heterodyne measurements. As the first application, the spectrum of a ~200 ppm methane-air mixture in a short 20 cm glass cell at ambient atmospheric pressure and temperature was measured.

published proceedings

  • Opt Lett

altmetric score

  • 0.5

author list (cited authors)

  • Zhu, F., Hundertmark, H., Kolomenskii, A. A., Strohaber, J., Holzwarth, R., & Schuessler, H. A.

citation count

  • 47

complete list of authors

  • Zhu, Feng||Hundertmark, Holger||Kolomenskii, Alexandre A||Strohaber, James||Holzwarth, Ronald||Schuessler, Hans A

publication date

  • June 2013