Modal decomposition of fiber modes based on direct far-field measurements at two different distances with a multi-variable optimization algorithm

We present a novel method for modal decomposition of a composite beam guided by a large-mode-area fiber by means of direct far-field pattern measurements with a multi-variable optimization algorithm. For reconstructing far-field patterns, we use finite-number bases of Hermite Gaussian modes that can...

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Veröffentlicht in:	Optics express 2021-07, Vol.29 (14), p.21502-21520
Hauptverfasser:	Kim, Byungho, Kim, Juhwan, Kim, Hansol, Jeong, Yoonchan
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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