%0 Journal Article %1 8736349 %A Röhrer, Christian %A Codemard, Christophe A. %A Kleem, Götz %A Graf, Thomas %A Abdou Ahmed, Marwan %D 2019 %J Journal of Lightwave Technology %K fiberbeamdelivery myown peer %N 17 %P 4260-4267 %R 10.1109/JLT.2019.2922776 %T Preserving Nearly Diffraction-Limited Beam Quality Over Several Hundred Meters of Transmission Through Highly Multimode Fibers %U https://ieeexplore.ieee.org/document/8736349/ %V 37 %X The influence of the core diameter and the fiber length on the beam quality of the transmitted beam was investigated theoretically and experimentally for highly multimode step-index fibers with a numerical aperture of 0.22 using a fully monolithic setup. We show that it is possible to maintain a nearly diffraction-limited beam quality (M$^2$ 1.3) through 100 m long multimode fibers. For a core diameter of $60\,\mu$m and a fiber length of 380 m one can still deliver a beam with an M$^2$ value of 2.1. The high-power suitability of this approach was shown by transmitting 1 kW of power through a 100 m long fiber with a core diameter of $60\,\mu$m without the onset of stimulated Raman scattering while maintaining a nearly diffraction-limited beam quality (M$^2 $ 1.3).

@article{8736349, abstract = {The influence of the core diameter and the fiber length on the beam quality of the transmitted beam was investigated theoretically and experimentally for highly multimode step-index fibers with a numerical aperture of 0.22 using a fully monolithic setup. We show that it is possible to maintain a nearly diffraction-limited beam quality (M$^{2}\boldsymbol{\approx }$ 1.3) through 100 m long multimode fibers. For a core diameter of $60\,\boldsymbol{\mu}$m and a fiber length of 380 m one can still deliver a beam with an M$^{2}$ value of 2.1. The high-power suitability of this approach was shown by transmitting 1 kW of power through a 100 m long fiber with a core diameter of $60\,\boldsymbol{\mu}$m without the onset of stimulated Raman scattering while maintaining a nearly diffraction-limited beam quality (M$^{2} \boldsymbol{\approx }$ 1.3).}, added-at = {2019-08-22T15:31:40.000+0200}, author = {Röhrer, Christian and Codemard, Christophe A. and Kleem, Götz and Graf, Thomas and Abdou Ahmed, Marwan}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/291d9c135ae57c6afb6672f35bb2470bd/christianrohrer}, doi = {10.1109/JLT.2019.2922776}, interhash = {e4f17dc0952551e5591c477353137428}, intrahash = {91d9c135ae57c6afb6672f35bb2470bd}, issn = {0733-8724}, journal = {Journal of Lightwave Technology}, keywords = {fiberbeamdelivery myown peer}, month = {Sep.}, number = 17, pages = {4260-4267}, timestamp = {2020-01-23T17:13:38.000+0100}, title = {Preserving Nearly Diffraction-Limited Beam Quality Over Several Hundred Meters of Transmission Through Highly Multimode Fibers}, url = {https://ieeexplore.ieee.org/document/8736349/}, volume = 37, year = 2019 }