Diode-pumped femtosecond Yb : KGd(WO4)(2) laser with 1.1-W average power

F. Brunner, G. J. Spühler, J. Aus der Au, L. Krainer, F. Morier-Genoud, R. Paschotta, N. Lichtenstein, S. Weiss, C. Harder, A. A. Lagatsky, A. Abdolvand, N. V. Kuleshov, U. Keller

    Research output: Contribution to journalArticlepeer-review

    247 Citations (Scopus)


    We demonstrate what is to our knowledge the first mode-locked Yb:KGd(WO4)(2) laser. Using a semiconductor saturable-absorber mirror for passive mode locking, we obtain pulses of 176-fs duration with an average power of 1.1 W and a peak power of 64 kW at a center wavelength of 1037 nm. We achieve pulses as short as 112 fs at a lower output power. The laser is based on a standard delta cavity and pumped by two high-brightness laser diodes, making the whole system very simple and compact. Tuning the laser by means of a knife-edge results in mode-locked pulses within a wavelength range from 1032 to 1054 nm. In cw operation, we achieve output powers as high as 1.3 W. (C) 2000 Optical Society of America OCIS codes: 140.3480, 140.3580, 140.4050, 140.5680.

    Original languageEnglish
    Pages (from-to)1119-1121
    Number of pages3
    JournalOptics Letters
    Issue number15
    Publication statusPublished - 2000


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