用飞秒激光逐点技术在掺bdk的PMMA光纤中刻录布拉格光栅

European Workshop on Optical Fibre Sensors Pub Date : 2023-05-23 DOI:10.1117/12.2678415

Jiaxin Li, Zhen Chen, Xin Cheng, H. Qu, C. Caucheteur, Xuehao Hu

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引用次数: 0

摘要

在这项工作中，我们报道了利用520 nm飞秒激光和逐点FBG刻字技术，在二甲苯二酮(BDK)掺杂的聚甲基丙烯酸甲酯(PMMA)光纤中实现2 mm长的光纤布拉格光栅(FBG)。当脉冲能量为11.2 nJ时，获得了最高的反射率~99%，折射率调制幅值为7.2×10-4。

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Bragg grating inscription in BDK-doped PMMA optical fiber using femtosecond laser point-by-point technique

In this work, we reported 2-mm-long fiber Bragg gratings (FBGs) in benzyl dimethyl ketal (BDK)-doped poly(methyl methacrylate) (PMMA) optical fibers by means of a 520 nm femtosecond laser and point-by-point FBG inscription technique. The highest reflectivity of ~99% is obtained with a pulse energy of 11.2 nJ, showing a large refractive index modulation amplitude of 7.2×10-4 .

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European Workshop on Optical Fibre Sensors

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