Recovery of a highly reflective Bragg grating in DPDS-doped polymer optical fiber by thermal annealing

Xuehao Hu; Ning Xu; Xin Cheng; Linyao Tan; Hwa Yaw Tam; Rui Min; Hang Qu; Christophe Caucheteur

doi:10.1364/OL.487779

Recovery of a highly reflective Bragg grating in DPDS-doped polymer optical fiber by thermal annealing

Xuehao Hu, Ning Xu, Xin Cheng, Linyao Tan, Hwa Yaw Tam, Rui Min, Hang Qu, Christophe Caucheteur

The Hong Kong Polytechnic University

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

Abstract

We report fiber Bragg grating manufacturing in poly(methyl methacrylate) (PMMA)-based polymer optical fibers (POFs) with a diphenyl disulfide (DPDS)-doped core by means of a 266 nm pulsed laser and the phase mask technique. Gratings were inscribed with different pulse energies ranging from 2.2 mJ to 2.7 mJ. For the latter, the grating reflectivity reached 91% upon 18-pulse illumination. Though the as-fabricated gratings decayed, they were recovered by post-annealing at 80°C for 1 day, after which they showed an even higher reflectivity of up to 98%. This methodology for the fabrication of highly reflective gratings could be applied for the production of high-quality tilted fiber Bragg gratings (TFBGs) in POFs for biochemical applications.

Original language	English
Pages (from-to)	2547-2550
Number of pages	4
Journal	Optics Letters
Volume	48
Issue number	10
DOIs	https://doi.org/10.1364/OL.487779
Publication status	Published - 15 May 2023

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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10.1364/OL.487779

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title = "Recovery of a highly reflective Bragg grating in DPDS-doped polymer optical fiber by thermal annealing",

abstract = "We report fiber Bragg grating manufacturing in poly(methyl methacrylate) (PMMA)-based polymer optical fibers (POFs) with a diphenyl disulfide (DPDS)-doped core by means of a 266 nm pulsed laser and the phase mask technique. Gratings were inscribed with different pulse energies ranging from 2.2 mJ to 2.7 mJ. For the latter, the grating reflectivity reached 91% upon 18-pulse illumination. Though the as-fabricated gratings decayed, they were recovered by post-annealing at 80°C for 1 day, after which they showed an even higher reflectivity of up to 98%. This methodology for the fabrication of highly reflective gratings could be applied for the production of high-quality tilted fiber Bragg gratings (TFBGs) in POFs for biochemical applications.",

author = "Xuehao Hu and Ning Xu and Xin Cheng and Linyao Tan and Tam, {Hwa Yaw} and Rui Min and Hang Qu and Christophe Caucheteur",

note = "Funding Information: Funding. Special Projects in Key Fields of Colleges and Universities in Guangdong Province (2020ZDZX3037); Science and Technology Department of Guangdong Province (2022A1515012571); Fonds De La Recherche Scientifique - FNRS. Publisher Copyright: {\textcopyright} 2023 Optica Publishing Group.",

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doi = "10.1364/OL.487779",

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T1 - Recovery of a highly reflective Bragg grating in DPDS-doped polymer optical fiber by thermal annealing

AU - Hu, Xuehao

AU - Xu, Ning

AU - Cheng, Xin

AU - Tan, Linyao

AU - Tam, Hwa Yaw

AU - Min, Rui

AU - Qu, Hang

AU - Caucheteur, Christophe

N1 - Funding Information: Funding. Special Projects in Key Fields of Colleges and Universities in Guangdong Province (2020ZDZX3037); Science and Technology Department of Guangdong Province (2022A1515012571); Fonds De La Recherche Scientifique - FNRS. Publisher Copyright: © 2023 Optica Publishing Group.

PY - 2023/5/15

Y1 - 2023/5/15

N2 - We report fiber Bragg grating manufacturing in poly(methyl methacrylate) (PMMA)-based polymer optical fibers (POFs) with a diphenyl disulfide (DPDS)-doped core by means of a 266 nm pulsed laser and the phase mask technique. Gratings were inscribed with different pulse energies ranging from 2.2 mJ to 2.7 mJ. For the latter, the grating reflectivity reached 91% upon 18-pulse illumination. Though the as-fabricated gratings decayed, they were recovered by post-annealing at 80°C for 1 day, after which they showed an even higher reflectivity of up to 98%. This methodology for the fabrication of highly reflective gratings could be applied for the production of high-quality tilted fiber Bragg gratings (TFBGs) in POFs for biochemical applications.

AB - We report fiber Bragg grating manufacturing in poly(methyl methacrylate) (PMMA)-based polymer optical fibers (POFs) with a diphenyl disulfide (DPDS)-doped core by means of a 266 nm pulsed laser and the phase mask technique. Gratings were inscribed with different pulse energies ranging from 2.2 mJ to 2.7 mJ. For the latter, the grating reflectivity reached 91% upon 18-pulse illumination. Though the as-fabricated gratings decayed, they were recovered by post-annealing at 80°C for 1 day, after which they showed an even higher reflectivity of up to 98%. This methodology for the fabrication of highly reflective gratings could be applied for the production of high-quality tilted fiber Bragg gratings (TFBGs) in POFs for biochemical applications.

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JO - Optics Letters

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IS - 10

ER -

Recovery of a highly reflective Bragg grating in DPDS-doped polymer optical fiber by thermal annealing

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