Six mode selective fiber optic spatial multiplexer

A.M. Velázquez-Benítez, Rodrigo Amezcua-Correa, J.E. Antonio-Lopez, Juan Hernandez-Cordero, Pierre Sillard, Chigo Okonkwo, Jose Javier Sánchez-Mondragón, Gisela Lopez-Galmiche, J.C. (Juan) Alvarado-Zacarias

Research output: Contribution to journalArticleAcademicpeer-review

150 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)1663-1666
Number of pages4
JournalOptics Letters
Issue number8
Publication statusPublished - 15 Apr 2015


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