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Proceedings Paper

Mode-locked Yb-doped large-mode-area microstructure fiber laser
Author(s): C. Lecaplain; A. Hideur; C. Chédot; G. Martel; B. Ortaç; J. Limpert
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Paper Abstract

We report on an all-normal dispersion passively mode-locked fiber laser based on an ytterbium-doped largemode- area microstructure fiber and featuring high-energy ultra-short pulses. Mode-locking was achieved with a high modulation depth semiconductor saturable absorber mirror (SESAM). We investigate the influence of the modulation depth of the SESAM on the laser performances. We show that mode-locking could be achieved with a modulation of only 10 %. However, the best performances in term of pulse energy are obtained with the highest modulation depth (35 %). In this case, the laser delivers 3.3 W 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 extra-cavity de-chirped down to 516 fs using bulk gratings. The average power of the de-chirped pulses is 2.3 W, which corresponds to a peak power of more than 96 kW.

Paper Details

Date Published: 16 April 2008
PDF: 6 pages
Proc. SPIE 6998, Solid State Lasers and Amplifiers III, 699809 (16 April 2008); doi: 10.1117/12.781558
Show Author Affiliations
C. Lecaplain, Univ. de Rouen (France)
A. Hideur, Univ. de Rouen (France)
C. Chédot, Univ. de Rouen (France)
G. Martel, Univ. de Rouen (France)
B. Ortaç, Friedrich-Schiller-Univ. Jena (Germany)
J. Limpert, Friedrich-Schiller-Univ. Jena (Germany)

Published in SPIE Proceedings Vol. 6998:
Solid State Lasers and Amplifiers III
Jonathan A. Terry; Thomas Graf; Helena Jelínková, Editor(s)

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