Self-pulsing behavior in high-power ytterbium-doped fiber lasers

Shuling Hu; Chunxi Zhang; Shouchao Wang; Hanwei Hu; Pan Ou

doi:10.1117/12.757916

6 February 2008 Self-pulsing behavior in high-power ytterbium-doped fiber lasers

Shuling Hu, Chunxi Zhang, Shouchao Wang, Hanwei Hu, Pan Ou

Proceedings Volume 6823, High-Power Lasers and Applications IV; 68230D (2008) https://doi.org/10.1117/12.757916
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

It is common to use Yb-doped double-clad fibers as gain medium of high power fiber lasers. These fibers are similar to the so-called "un-doped" telecommunication fiber. Because of small core size, only from several microns to tens of microns, there are easier causing self-pulsing affects in the fiber lasers. In the first part it is reported the several kinds of self-pulsing according to the reported papers, like relaxed oscillation, saturated absorption effect, stimulated Brillouin scattering and stimulated Raman scattering. Then it is presented the experimental study and the different self-pulsing phenomena. The result shows that under the high power condition, although ytterbium ions without concentration effect, but large core Yb-doped double-clad fiber are the same to three-level ion systems that self-pulsing behavior was the result of relaxed oscillation. To Yb-doped fiber laser, saturated absorption effect, stimulated Brillouin scattering and stimulated Raman scattering cannot be ignored.

Citation Download Citation

Shuling Hu, Chunxi Zhang, Shouchao Wang, Hanwei Hu, and Pan Ou "Self-pulsing behavior in high-power ytterbium-doped fiber lasers", Proc. SPIE 6823, High-Power Lasers and Applications IV, 68230D (6 February 2008); https://doi.org/10.1117/12.757916

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