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Proceedings Paper

Energy scaling of femtosecond and picosecond fiber oscillators beyond the microjoule level
Author(s): B. Ortac; M. Baumgartl; O. Schmidt; A. Hideur; I. Sagnes; A. Garnache; J. Limpert; A. Tünnermann
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Paper Abstract

We report on the generation of microjoule level picosecond pulses from a mode-locked Yb-doped LMA fiber laser operating in the purely normal dispersion regime. The self-starting oscillator stabilized with slow relaxation semiconductor saturable absorber (SAM) emits 11 W of average power at a pulse repetition rate of 10 MHz, corresponding to a pulse energy of 1.1 μJ. The laser produces a 0.4 nm narrow emission line with 310 ps output pulses. In the femtosecond operation, the oscillator stabilized with fast relaxation SAM emits 9 W of average power at a pulse repetition rate of 9.7 MHz, corresponding to a pulse energy of 927 nJ. The laser produces positively chirped output pulses of 8 ps which are compressed down to 711 fs, corresponding to megawatt peak power. To our knowledge this is the first time that mode-locked fiber oscillators can generate higher pulse energies of beyond microjoule-level at high average output power.

Paper Details

Date Published: 19 February 2009
PDF: 9 pages
Proc. SPIE 7195, Fiber Lasers VI: Technology, Systems, and Applications, 719515 (19 February 2009); doi: 10.1117/12.809069
Show Author Affiliations
B. Ortac, Friedrich-Schiller-Univ. Jena (Germany)
M. Baumgartl, Friedrich-Schiller-Univ. Jena (Germany)
O. Schmidt, Friedrich-Schiller-Univ. Jena (Germany)
A. Hideur, Groupe d'Optique et d'Optronique, CNRS, CORIA (France)
I. Sagnes, Lab. de Photonique et Nanotechnologie, CNRS (France)
A. Garnache, Institut d’Electronique du Sud, CNRS, Univ. Montpellier II (France)
J. Limpert, Friedrich-Schiller-Univ. Jena (Germany)
A. Tünnermann, Friedrich-Schiller-Univ. Jena (Germany)
Fraunhofer Institute for Applied Optics and Precision Engineering (Germany)

Published in SPIE Proceedings Vol. 7195:
Fiber Lasers VI: Technology, Systems, and Applications
Denis V. Gapontsev; Dahv A. Kliner; Jay W. Dawson; Kanishka Tankala, Editor(s)

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