Home Events 23rd Scientific Meeting - Striving towards strictly singlemode very-large-mode-area fibers

23rd Scientific Meeting - Striving towards strictly singlemode very-large-mode-area fibers

Today we will have another Scientific Meeting! The talk will be given by Dr. Romain Dauliat from the Xlim research institute, France! Don't Miss It! Be Where The Action Is!
When Oct 19, 2015
from 03:00 to 04:00
Where Room -120, Physics and Astronomy Department, FC3
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Abstract:

Over the last two decades, significant efforts have been devoted to the development of Very-Large-Mode-Area (VLMA) fibers enabling for singlemode high power operation. However, enlarging the fiber core size to fend-off non-linear effects comes at the cost of an increasing number of guided modes. Thus, various kind of microstructured optical fibers have been devised to get a singlemode emission. Among them, active Large-Pitch-Fibers have enabled singlemode operation with core size reaching up to 135 µm and outstanding performances both in continuous and pulsed regimes. This lecture will focuse on the last achievements made in this field for ensuring a strictly singlemode propagation and increase the resilience to thermal-induced phenomenon that degrades the beam quality. As an outcome, an original aperiodic structure will be presented from its modelling to its first experimental validation as a fiber laser.

Short bio:

Romain Dauliat was born in Brive-la-gaillarde, France, in 1987. He received its Ph.D. degree in Optics from the University of Limoges in 2013 for his work on the development of innovative microstructured optical fibers for high-power applications at the Xlim Institute. He spent 15 months as a post-doctoral researcher at the Leibniz Institute of Photonic Technology in Jena, Germany, for the production of these novel fibers. Currently he is a Post-doctoral researcher at the Xlim research institute, pursuing his work on high power fiber lasers operating either at 1 or 2 µm (either Ytterbium or Thulium doped fibers).


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