High-precision fiber Bragg gratings inscription by infrared femtosecond laser direct-writing method assisted with image recognition

For achieving high efficiency fiber Bragg gratings (FBGs) utilizing infrared femtosecond laser point-by-point inscription method, it is crucial to make the inscribed periodic structure perfectly in phase. It requires a perfect alignment between the micrometer-sized laser spot with the fiber along th...

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Veröffentlicht in:	Optics express 2020-03, Vol.28 (6), p.8937-8948
Hauptverfasser:	Yu, Yanjiang, Shi, Jindan, Han, Feng, Sun, Wenjuan, Feng, Xian
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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