Experimental observations of the threshold-like onset of mode instabilities in high power fiber amplifiers | Zendy

Tino Eidam | Zendy; Christian Wirth | Zendy; César Jáuregui | Zendy; Fabian Stutzki | Zendy; Florian Jansen | Zendy; Hans-Jürgen Otto | Zendy; O. Schmidt | Zendy; Thomas Schreiber | Zendy; Jens Limpert | Zendy; Andreas Tünnermann | Zendy

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Experimental observations of the threshold-like onset of mode instabilities in high power fiber amplifiers

Author(s) -

Tino Eidam,

Christian Wirth,

César Jáuregui,

Fabian Stutzki,

Florian Jansen,

Hans-Jürgen Otto,

O. Schmidt,

Thomas Schreiber,

Jens Limpert,

Andreas Tünnermann

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.013218

Subject(s) - amplifier , optics , mode (computer interface) , power (physics) , single mode optical fiber , fiber amplifier , physics , mode volume , optical fiber , fiber laser , polarization maintaining optical fiber , optoelectronics , fiber optic sensor , computer science , cmos , quantum mechanics , operating system

We report on the observation and experimental characterization of a threshold-like onset of mode instabilities, i.e. an apparently random relative power content change of different transverse modes, occurring in originally single-mode high-power fiber amplifiers. Although the physical origin of this effect is not yet fully understood, we discuss possible explanations. Accordingly, several solutions are proposed in this paper to raise the threshold of this effect.

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