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

Jiaxin Li; Zhen Chen; Xin Cheng; Hang Qu; Christophe Caucheteur; Xuehao Hu

doi:10.1117/12.2678415

23 May 2023 Bragg grating inscription in BDK-doped PMMA optical fiber using femtosecond laser point-by-point technique

Jiaxin Li, Zhen Chen, Xin Cheng, Hang Qu, Christophe Caucheteur, Xuehao Hu

Proceedings Volume 12643, European Workshop on Optical Fibre Sensors (EWOFS 2023); 126432W (2023) https://doi.org/10.1117/12.2678415
Event: European Workshop on Optical Fibre Sensors (EWOFS 2023), 2023, Mons, Belgium

Abstract

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.

Citation Download Citation

Jiaxin Li, Zhen Chen, Xin Cheng, Hang Qu, Christophe Caucheteur, and Xuehao Hu "Bragg grating inscription in BDK-doped PMMA optical fiber using femtosecond laser point-by-point technique", Proc. SPIE 12643, European Workshop on Optical Fibre Sensors (EWOFS 2023), 126432W (23 May 2023); https://doi.org/10.1117/12.2678415

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