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2-GHz passive harmonically mode-locked Yb-doped double-clad fiber laser


We report passive harmonic mode locking of a high-power Yb-doped double-clad fiber laser. 680-fs, 48-pJ pulses are emitted at the repetition rate of 2.13 GHz, while the free spectral range of the cavity is 23.4 MHz. Results indicate a supermode suppression of more than 25 dB.

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Correspondence to M. Brunel.

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Ortaç, B., Hideur, A., Martel, G. et al. 2-GHz passive harmonically mode-locked Yb-doped double-clad fiber laser. Appl. Phys. B 81, 507–509 (2005).

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  • 42.55.Wd
  • 42.65.Re