Focal field analysis of highly multi-mode fiber beams
based on modal decomposition
Posted on 2020-07-23 - 18:07
In this work, a numerical modal decomposition approach is applied to model the optical field of laser
light after propagating through a highly multi-mode
fiber. The algorithm for the decomposition is based
on the reconstruction of measured intensity profiles
along the laser beam caustic with consideration of intermodal degrees of coherence derived from spectral
analysis. To enhance the accuracy of the model, different approaches and strategies are applied and discussed. The presented decomposition into a set of LP
modes enables both the wave-optical simulation of radiation transport by highly multi-mode fibers and, additionally, the analysis of free-space propagation with
arbitrarily modified complex amplitude distributions.
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Pang, Hao; Haecker, Tobias; bense, alexandre; Haist, Tobias; Flamm, Daniel (2020). Focal field analysis of highly multi-mode fiber beams
based on modal decomposition. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.4979849.v1
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AUTHORS (5)
HP
Hao Pang
TH
Tobias Haecker
ab
alexandre bense
TH
Tobias Haist
DF
Daniel Flamm