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Femtosecond laser point-by-point Bragg grating inscription in BDK-doped step-index PMMA optical fibers

Xuehao Hu, Zhen Chen, Xin Cheng, Rui Min, Hang Qu, Christophe Caucheteur, and Hwa-Yaw Tam

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Abstract

In this paper, the inscription of 2-mm-long fiber Bragg gratings (FBGs) on benzyl dimethyl ketal (BDK)-doped poly(methyl methacrylate) (PMMA) optical fibers by means of a femtosecond laser and a point-by-point FBG inscription technique is reported. The highest reflectivity of approximately 99% is obtained with a pulse energy of 68.5 nJ, showing a large refractive index modulation amplitude of 7.2 × 10−4. Afterwards, grating stabilities at room and higher temperatures of up to 80°C are investigated.

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Corrections

Xuehao Hu, Zhen Chen, Xin Cheng, Rui Min, Hang Qu, Christophe Caucheteur, and Hwa-Yaw Tam, "Femtosecond laser point-by-point Bragg grating inscription in BDK-doped step-index PMMA optical fibers: erratum," Opt. Lett. 47, 3547-3547 (2022)
https://opg.optica.org/ol/abstract.cfm?uri=ol-47-14-3547
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Femtosecond laser point-by-point Bragg grating inscription in BDK-doped step-index PMMA optical fibers: erratum

Xuehao Hu, Zhen Chen, Xin Cheng, Rui Min, Hang Qu, Christophe Caucheteur, and Hwa-Yaw Tam
Opt. Lett. 47(14) 3547-3547 (2022)

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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