Orbital angular momentum beam excitation using an all-fiber weakly fused mode selective coupler.
Opt Lett
; 42(21): 4347-4350, 2017 Nov 01.
Article
em En
| MEDLINE
| ID: mdl-29088160
ABSTRACT
Orbital angular momentum beam excitation through direct phase-matched coupling is experimentally demonstrated using an all-fiber weakly fused mode selective coupler consisting of a single-mode fiber and a ring-core fiber. Experimental results showing the excited OAM mode purity of up to 75% measured through the standard ring technique not only demonstrate the proof of concept but also provide a baseline for further improvement.
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MEDLINE
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En
Ano de publicação:
2017
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Article