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; Hwayaw Tam

doi:10.1364/OL.450047

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, Hwayaw Tam

Research output: Journal article publication › Journal article › Academic research › peer-review

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.

Original language	English
Pages (from-to)	249-252
Journal	Optics Letters
Volume	47
Issue number	2
DOIs	https://doi.org/10.1364/OL.450047
Publication status	Published - 5 Jan 2022

More information

10.1364/OL.450047

Cite this

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

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.",

author = "Xuehao Hu and Zhen Chen and Xin Cheng and Rui Min and Hang Qu and Christophe Caucheteur and Hwayaw Tam",

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AU - Hu, Xuehao

AU - Chen, Zhen

AU - Cheng, Xin

AU - Min, Rui

AU - Qu, Hang

AU - Caucheteur, Christophe

AU - Tam, Hwayaw

PY - 2022/1/5

Y1 - 2022/1/5

N2 - 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.

AB - 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.

U2 - 10.1364/OL.450047

DO - 10.1364/OL.450047

M3 - Journal article

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EP - 252

JO - Optics Letters

JF - Optics Letters

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