Cross-correlated imaging of distributed mode filtering rod fiber

Marko Laurila; Roman Barankov; Mette M. Jørgensen; Sidsel R. Petersen; Thomas T. Alkeskjold; Jes Broeng; Jesper Lægsgaard; Siddharth Ramachandran

doi:10.1117/12.2002808

26 February 2013 Cross-correlated imaging of distributed mode filtering rod fiber

Marko Laurila, Roman Barankov, Mette M. Jørgensen, Sidsel R. Petersen, Thomas T. Alkeskjold, Jes Broeng, Jesper Lægsgaard, Siddharth Ramachandran

Author Affiliations +

Proceedings Volume 8601, Fiber Lasers X: Technology, Systems, and Applications; 86010K (2013) https://doi.org/10.1117/12.2002808
Event: SPIE LASE, 2013, San Francisco, California, United States

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, and 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); https://doi.org/10.1117/12.2002808

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