activity
20192022
most citedExperimental Investigations on the TMI Thresholds of Low-NA Yb-doped single mode fibers

94 citations · 203 across the 5 of their papers we have counts for

collaborators

5 papers

physics.optics2022★ 31 cited

500 W rod-type 4x4 multi-core ultrafast fiber laser

A. Klenke, A. Steinkopff, C. Aleshire +10

We present a coherently-combined femtosecond fiber CPA system based on a rod-type, Ytterbium-doped, multicore fiber with 4x4 cores. A high average power of up to 500 W (after combi…

physics.optics2021★ 24 cited

Laser Cooling of a Yb Doped Silica Fiber by 18 Kelvin From Room Temperature

Brian Topper, Mostafa Peysokhan, Alexander R. Albrecht +10

A ytterbium doped silica optical fiber has been cooled by 18.4K below ambient temperature by pumping with 20W of 1035nm light in vacuum. In air, cooling by 3.6K below ambient was o…

physics.optics2021★ 94 cited

Experimental Investigations on the TMI Thresholds of Low-NA Yb-doped single mode fibers

Franz Beier, Friedrich Moeller, Bettina Sattler +9

In this contribution we investigate the transversal mode instability behavior of an ytterbium doped commercial 20/400 fiber and obtain 2.9 kW of output power after optimizing the i…

physics.optics2020★ 1 cited

Laser-induced anti-Stokes fluorescence cooling of ytterbium-doped silica glass by more than 6 Kelvin

Mostafa Peysokhan, Saeid Rostami, Esmaeil Mobini +12

Laser cooling of a solid is achieved when a coherent laser illuminates the material, and the heat is extracted by resulting anti-Stokes fluorescence. Over the past year, net solid-…

physics.optics2019★ 53 cited

Laser Cooling of Silica Glass

Esmaeil Mobini, Saeid Rostami, Mostafa Peysokhan +11

Laser cooling of a solid is achieved when a coherent laser illuminates the material in the red tail of its absorption spectrum, and the heat is carried out by anti-Stokes fluoresce…