Article (Scientific journals)
Femtosecond laser point-by-point Bragg grating inscription in BDK-doped step-index PMMA optical fibers.
Hu, Xuehao; Chen, Zhen; Cheng, Xin et al.
2022In Optics Letters, 47 (2), p. 249 - 252
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Keywords :
High reflectivity; Laser point; Long fiber; Modulation amplitudes; Poly(methyl methacrylate); Poly-methyl methacrylates; Pulse energies; Refractive-index modulation; Room and high temperatures; Atomic and Molecular Physics, and Optics
Abstract :
[en] 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.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Hu, Xuehao  ;  Research Center for Advanced Optics and Photoelectronics, Department of Physics, College of Science, Shantou University, Guangdong, China ; Key Laboratory of Intelligent Manufacturing Technology of MOE, Shantou University, Guangdong, China
Chen, Zhen;  Research Center for Advanced Optics and Photoelectronics, Department of Physics, College of Science, Shantou University, Guangdong, China ; Key Laboratory of Intelligent Manufacturing Technology of MOE, Shantou University, Guangdong, China
Cheng, Xin ;  Photonics Research Centre, Department of Electrical Engineering, Hong Kong Polytechnic University, Kowloon, Hong Kong
Min, Rui;  Center for Cognition and Neuroergonomics, State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University at Zhuhai, Zhuhai, China
Qu, Hang;  Research Center for Advanced Optics and Photoelectronics, Department of Physics, College of Science, Shantou University, Guangdong, China ; Key Laboratory of Intelligent Manufacturing Technology of MOE, Shantou University, Guangdong, China
Caucheteur, Christophe  ;  Université de Mons - UMONS > Faculté Polytechniqu > Service d'Electromagnétisme et Télécommunications
Tam, Hwa-Yaw;  Photonics Research Centre, Department of Electrical Engineering, Hong Kong Polytechnic University, Kowloon, Hong Kong
Language :
English
Title :
Femtosecond laser point-by-point Bragg grating inscription in BDK-doped step-index PMMA optical fibers.
Publication date :
15 January 2022
Journal title :
Optics Letters
ISSN :
0146-9592
eISSN :
1539-4794
Publisher :
Optica Publishing Group (formerly OSA), United States
Volume :
47
Issue :
2
Pages :
249 - 252
Peer reviewed :
Peer Reviewed verified by ORBi
Research unit :
Electromagnetism and Telecommunications
Research institute :
Research Institute for Materials Science and Engineering
Funders :
2020 Li Ka Shing Foundation Cross-Disciplinary Research Grant
Specialized Project Fund in Science and Technology of Guangdong Province
Special projects in key fields of colleges and universities in Guangdong Province
The Start-up fund from Shantou University
National Natural Science Foundation of China
International Science and Technology Cooperation Programme
Funding text :
Funding. 2020 Li Ka Shing Foundation Cross-Disciplinary Research Grant (2020LKSFG01B, 2020LKSFG14B); Specialized Project Fund in Science and Technology of Guangdong Province (2019ST096, 2019ST135); Special projects in key fields of colleges and universities in Guangdong Province (2020ZDZX3035, 2020ZDZX3037); The Start-up fund from Shantou University (NTF18016, NTF19023); National Natural Science Foundation of China (62003046); International Science and Technology Cooperation Programme (BZ2019063, BZ2020030, BZ2020045).C. Caucheteur is supported by the F.R.S.-FNRS.
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