Air-clad photonic lanterns: fabrication and applications

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Abstract

The fabrication steps for an air-clad photonic lantern that can excite the first two LP mode groups in a multimode fiber are presented in this paper. A multiplexing crosstalk below -16.8 dB is measured on the fabricated lantern using S2 imaging technique over a wavelength of 1525 nm to 1575 nm. The de-multiplexing crosstalk is measured for both LP01 and LP11 mode groups as -16.8 dB and -9.4 dB respectively using loss measurements. 2 × 40 Gb/s MIMO-less MDM transmission through 7 m of two mode step index fiber is demonstrated using the fabricated photonic lanterns. 2×10 Gb/s MIMO-less MDM transmission through 1.6 km standard 50/125 µm multimode fiber is also demonstrated and a Q value higher than 3.7 is obtained for both spatial channels over all input polarizations. Simple intensity modulation and direct detection schemes are used for these MDM transmissions. 
Original languageEnglish
Article number054011
JournalJournal of Optics
Volume24
Issue number5
Number of pages27
ISSN1464-4258
DOIs
Publication statusPublished - 2022

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