26 February 2013 Cross-correlated imaging of distributed mode filtering rod fiber
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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, Marko Laurila, Roman Barankov, Roman Barankov, Mette M. Jørgensen, Mette M. Jørgensen, Sidsel R. Petersen, Sidsel R. Petersen, Thomas T. Alkeskjold, Thomas T. Alkeskjold, Jes Broeng, Jes Broeng, Jesper Lægsgaard, Jesper Lægsgaard, Siddharth Ramachandran, 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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