26 February 2013 Cross-correlated imaging of distributed mode filtering rod fiber
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Abstract
We analyze the modal properties of an 85μm core distributed mode filtering rod fiber using cross-correlated (C2) imaging. We evaluate suppression of higher-order modes (HOMs) under severely misaligned mode excitation and identify a single-mode regime where HOMs are suppressed by more than 20dB.
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Marko Laurila, Roman Barankov, Mette M. Jørgensen, Sidsel R. Petersen, Thomas T. Alkeskjold, Jes Broeng, Jesper Lægsgaard, Siddharth Ramachandran, "Cross-correlated imaging of distributed mode filtering rod fiber", Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 86010K (26 February 2013); doi: 10.1117/12.2002808; https://doi.org/10.1117/12.2002808
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