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Opt Lett. 2007 Sep 15;32(18):2738-40.

High-power all-normal-dispersion femtosecond pulse generation from a Yb-doped large-mode-area microstructure fiber laser.

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1
Groupe d'Optique et d'Optronique, CORIA UMR 6614, Université de Rouen, Avenue de l'Université BP 12, 76801, Saint Etienne du Rouvray Cedex, France.

Abstract

We report on an all-normal-dispersion mode-locked fiber laser based on a large-mode-area Yb-doped microstructure fiber and using a high nonlinear modulation depth semiconductor saturable absorber mirror. The laser delivers 3.3 W of average output power with positively chirped 5.5 ps pulses at a center wavelength of 1033 nm. The pulse repetition rate is 46.4 MHz, which results in an energy per pulse of 71 nJ. These pulses are extracavity dechirped down to 516 fs by using bulk gratings. The average power of the dechirped pulses is 2.3 W, which corresponds to a peak power of more than 96 kW.

PMID:
17873953
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