16 December 2014 Application of the error reduction algorithm to measurement of modal power distribution in a multimode fiber
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Proceedings Volume 9290, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014; 929007 (2014) https://doi.org/10.1117/12.2074242
Event: Symposium on Photonics Applications in Astronomy, Communications, Industry and High-Energy Physics Experiments, 2014, Warsaw, Poland
Abstract
In this paper, a new highly accurate non-interferometric method of measuring the modal power distribution (MPD) in a multimode fiber is presented. In the proposed method, light intensity in the near field and the far field of the multimode fiber are measured simultaneously by two cameras and an error reduction algorithm (in the basic version: Gerchberg- Saxton) is used to derive the phase distribution, which is required for decomposition of the field in the basis of eigen-modes of the fiber. In simulations shown, the method presents excellent convergence and accuracy. The experimentally measured MPD are shown as well.
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G. Stepniak, G. Stepniak, } "Application of the error reduction algorithm to measurement of modal power distribution in a multimode fiber", Proc. SPIE 9290, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2014, 929007 (16 December 2014); doi: 10.1117/12.2074242; https://doi.org/10.1117/12.2074242
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