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Velazquez-Benitez AM, Alvarado JC, Lopez-Galmiche G, et al. Six mode selective fiber optic spatial multiplexer. Opt Lett. 2015;40(8):1663-6doi: 10.1364/OL.40.001663.
Velazquez-Benitez, A. M., Alvarado, J. C., Lopez-Galmiche, G., Antonio-Lopez, J. E., Hernández-Cordero, J., Sanchez-Mondragon, J., Sillard, P., Okonkwo, C. M., & Amezcua-Correa, R. (2015). Six mode selective fiber optic spatial multiplexer. Optics letters, 40(8), 1663-6. https://doi.org/10.1364/OL.40.001663
Velazquez-Benitez, A M, et al. "Six mode selective fiber optic spatial multiplexer." Optics letters vol. 40,8 (2015): 1663-6. doi: https://doi.org/10.1364/OL.40.001663
Velazquez-Benitez AM, Alvarado JC, Lopez-Galmiche G, Antonio-Lopez JE, Hernández-Cordero J, Sanchez-Mondragon J, Sillard P, Okonkwo CM, Amezcua-Correa R. Six mode selective fiber optic spatial multiplexer. Opt Lett. 2015 Apr 15;40(8):1663-6. doi: 10.1364/OL.40.001663. PMID: 25872042.
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Opt Lett. 2015 Apr 15;40(8):1663-6. doi: 10.1364/OL.40.001663.

Six mode selective fiber optic spatial multiplexer.

Optics letters

A M Velazquez-Benitez, J C Alvarado, G Lopez-Galmiche, J E Antonio-Lopez, J Hernández-Cordero, J Sanchez-Mondragon, P Sillard, C M Okonkwo, R Amezcua-Correa

PMID: 25872042 DOI: 10.1364/OL.40.001663

Abstract

Low-loss all-fiber photonic lantern (PL) mode multiplexers (MUXs) capable of selectively exciting the first six fiber modes of a multimode fiber (LP01, LP11a, LP11b, LP21a, LP21b, and LP02) are demonstrated. Fabrication of the spatial mode multiplexers was successfully achieved employing a combination of either six step or six graded index fibers of four different core sizes. Insertion losses of 0.2-0.3 dB and mode purities above 9 dB are achieved. Moreover, it is demonstrated that the use of graded index fibers in a PL eases the length requirements of the adiabatic tapered transition and could enable scaling to large numbers.

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