High-efficiency broadband third-order OAM mode converter based on a multi-period preset-twist long-period fiber grating

All-fiber mode converters for generating orbital angular momentum (OAM) beams have many applications in optical communications, optical sensing and lasers. Currently, it is a great challenge to use a long-period fiber grating (LPFG) to broadband excite high-order OAM modes above the second-order. He...

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Veröffentlicht in:	Optics express 2022-12, Vol.30 (26), p.47048-47058
Hauptverfasser:	Chang, Wenzhe, Feng, Mao, Wang, Pan, Wang, Zhi, Liu, Yan-Ge
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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