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

被引：15

作者：

Hu, Xuehao ^{[1
,2
]}

Chen, Zhen ^{[1
,2
]}

Cheng, Xin ^{[3
]}

Min, Rui ^{[4
]}

Qu, Hang ^{[1
,2
]}

Caucheteur, Christophe ^{[5
]}

Tam, Hwa-Yaw ^{[3
]}

机构：

[1] Shantou Univ, Coll Sci, Res Ctr Adv Opt & Photoelect, Dept Phys, Shantou 515063, Guangdong, Peoples R China

[2] Shantou Univ, Key Lab Intelligent Mfg Technol, MOE, Shantou 515063, Guangdong, Peoples R China

[3] Hong Kong Polytech Univ, Photon Res Ctr, Dept Elect Engn, Hong Kong, Peoples R China

[4] Beijing Normal Univ Zhuhai, Ctr Cognit & Neuroergon, State Key Lab Cognit Neurosci & Learning, Zhuhai 519087, Guangdong, Peoples R China

[5] Univ Mons, Dept Electromagnetism & Telecommun, Blvd Dolez 31, B-7000 Mons, Belgium

来源：

OPTICS LETTERS | 2022年 / 47卷 / 02期

基金：

中国国家自然科学基金;

关键词：

FABRICATION; EXCITATION; SILICA;

D O I：

10.1364/OL.450047

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

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 x 10(-4). Afterwards, grating stabilities at room and higher temperatures of up to 80 degrees C are investigated. (C) 2022 Optica Publishing Group

引用

页码：249 / 252

页数：4

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