Magnesium diboride (MgB2) as a saturable absorber for a ytterbium-doped Q-switched fiber laser.

Author(s) Morshed, M.; Hattori, H.T.; Haque, A.; Olbricht, B.C.
Journal Appl Opt
Date Published 2017 Sep 20
Abstract

Magnesium diboride (MgB2) is a well-known superconductor at temperatures below 39 K. At higher temperatures, it behaves as a lossy material. In this paper, we examine the performance of MgB2 nano-particles as saturable absorber in a ytterbium-doped fiber ring laser at room temperature: we show that the nano-particles can produce pulses between 200 and 1700 ns. The dynamics of the saturable absorber are both examined as a stand-alone saturable absorber and in combination with an acousto-optic modulator. We believe, to the best of our knowledge, that this is the first time that MgB2 is used as a saturable absorber in a Q-switched laser.

DOI 10.1364/AO.56.007611
ISSN 1539-4522
Citation Morshed M, Hattori HT, Haque A, Olbricht BC. Magnesium diboride (MgB2) as a saturable absorber for a ytterbium-doped Q-switched fiber laser. Appl Opt. 2017;56(27):7611-7617.

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