Optimized laser-written ZBLAN fiber Bragg gratings with high reflectivity and low loss

We report the direct femtosecond laser inscription of type-I fiber Bragg gratings (FBGs) into the core of soft-glass ZBLAN fibers. We investigate and compare various fabrication methods such as single pass (line by line), double pass, and stacking (plane by plane) to create the highest reflectivity...

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Veröffentlicht in:	Optics letters 2019-01, Vol.44 (2), p.423-426
Hauptverfasser:	Bharathan, Gayathri, Fernandez, Toney Teddy, Ams, Martin, Woodward, Robert I, Hudson, Darren D, Fuerbach, Alex
Format:	Artikel
Sprache:	eng
Schlagworte:	Bragg gratings Coupling coefficients Reflectance Refractivity
Online-Zugang:	Volltext
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