5 October 2009 New methods for modal decomposition in multi-mode fibres
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Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 750346 (2009) https://doi.org/10.1117/12.835436
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom
Abstract
We propose and demonstrate two methods for modal decomposition in multi-mode fibres. Linearly polarized modes propagating in a slightly multi-mode fibre are easily retrieved from intensity measurements at the fibre output surface. The first method is an improvement of the so-called spectrally and spatially imaging technique, which is limited to largemode- area optical fibers. The second method is a new, simpler and faster solution for the characterization of any kind of optical fibre, thus attractive in comparison to previously reported methods, which are cumbersome, time-consuming and/or limited to large-more-area fibres. Different kinds of multi-mode optical fibres are characterized. A large-modearea photonic-bandgap fibre, a photonic-crystal small-core non-linear fibre, and a standard index-stepped multi-mode fibre are characterized successfully.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. Blin, S. Blin, T. N. Nguyen, T. N. Nguyen, D. M. Nguyen, D. M. Nguyen, P. Rochard, P. Rochard, L. Provino, L. Provino, A. Monteville, A. Monteville, T. Robin, T. Robin, A. Mugnier, A. Mugnier, B. Cadier, B. Cadier, D. Pureur, D. Pureur, M. Thual, M. Thual, T. Chartier, T. Chartier, } "New methods for modal decomposition in multi-mode fibres", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 750346 (5 October 2009); doi: 10.1117/12.835436; https://doi.org/10.1117/12.835436
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