Direct Femtosecond Laser Inscription of High-Order Bragg Gratings in Fluoroaluminate Glass Fiber

Lin She; Niannian Xu; Pengfei Wang; Jiquan Zhang; Mo Liu; Nian Lv; Ruoning Wang; Zhenrui Li; Shijie Jia; Shunbin Wang; Gerald Farrell; Weimin Sun

doi:10.1109/JPHOT.2022.3159556

Direct Femtosecond Laser Inscription of High-Order Bragg Gratings in Fluoroaluminate Glass Fiber

Lin She, Niannian Xu, Pengfei Wang, Jiquan Zhang, Mo Liu, Nian Lv, Ruoning Wang, Zhenrui Li, Shijie Jia, Shunbin Wang, Gerald Farrell, Weimin Sun

Technological University Dublin

Research output: Contribution to journal › Article › peer-review

Abstract

This letter reports the fabrication of fiber Bragg gratings (FBGs) within in-house fabricated fluoroaluminate (AlF3) glass fibers using femtosecond (fs) laser inscription at 800 nm. The grating strength of the FBGs was investigated for different pulse energies and different orders, and a 3rd-order FBG with Bragg wavelength at 1557 nm was found to have the highest reflectivity of 99.5%. In addition, the reflectivity of the mid-IR grating peaks for different orders was also studied, and a 2nd-order FBG with a reflectivity of 98.8% was obtained at 2864 nm. Finally, the temperature characteristics of a mid-IR FBG were studied between 30 °C and 150 °C, showing a linear wavelength dependence and an excellent stability for the refractive index modulation. Such highly reflectivity FBGs in AlF3 fiber have significant potential for applications in the development of compact all-fiber mid-IR fiber lasers.

Original language	English
Article number	5119105
Journal	IEEE Photonics Journal
Volume	14
Issue number	2
DOIs	https://doi.org/10.1109/JPHOT.2022.3159556
Publication status	Published - 1 Apr 2022

Keywords

Fiber Bragg gratings
femtosecond laser
fluoroaluminate glass fiber

Access to Document

10.1109/JPHOT.2022.3159556Licence: CC BY

https://arrow.tudublin.ie/prcart/33Licence: CC BY

Cite this

@article{a109f22b9d6c4fc1b7cfa408e621316a,

title = "Direct Femtosecond Laser Inscription of High-Order Bragg Gratings in Fluoroaluminate Glass Fiber",

abstract = "This letter reports the fabrication of fiber Bragg gratings (FBGs) within in-house fabricated fluoroaluminate (AlF3) glass fibers using femtosecond (fs) laser inscription at 800 nm. The grating strength of the FBGs was investigated for different pulse energies and different orders, and a 3rd-order FBG with Bragg wavelength at 1557 nm was found to have the highest reflectivity of 99.5\%. In addition, the reflectivity of the mid-IR grating peaks for different orders was also studied, and a 2nd-order FBG with a reflectivity of 98.8\% was obtained at 2864 nm. Finally, the temperature characteristics of a mid-IR FBG were studied between 30 °C and 150 °C, showing a linear wavelength dependence and an excellent stability for the refractive index modulation. Such highly reflectivity FBGs in AlF3 fiber have significant potential for applications in the development of compact all-fiber mid-IR fiber lasers.",

keywords = "Fiber Bragg gratings, femtosecond laser, fluoroaluminate glass fiber",

author = "Lin She and Niannian Xu and Pengfei Wang and Jiquan Zhang and Mo Liu and Nian Lv and Ruoning Wang and Zhenrui Li and Shijie Jia and Shunbin Wang and Gerald Farrell and Weimin Sun",

note = "Publisher Copyright: {\textcopyright} 2009-2012 IEEE.",

year = "2022",

month = apr,

day = "1",

doi = "10.1109/JPHOT.2022.3159556",

language = "English",

volume = "14",

journal = "IEEE Photonics Journal",

issn = "1943-0655",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "2",

}

TY - JOUR

T1 - Direct Femtosecond Laser Inscription of High-Order Bragg Gratings in Fluoroaluminate Glass Fiber

AU - She, Lin

AU - Xu, Niannian

AU - Wang, Pengfei

AU - Zhang, Jiquan

AU - Liu, Mo

AU - Lv, Nian

AU - Wang, Ruoning

AU - Li, Zhenrui

AU - Jia, Shijie

AU - Wang, Shunbin

AU - Farrell, Gerald

AU - Sun, Weimin

PY - 2022/4/1

Y1 - 2022/4/1

N2 - This letter reports the fabrication of fiber Bragg gratings (FBGs) within in-house fabricated fluoroaluminate (AlF3) glass fibers using femtosecond (fs) laser inscription at 800 nm. The grating strength of the FBGs was investigated for different pulse energies and different orders, and a 3rd-order FBG with Bragg wavelength at 1557 nm was found to have the highest reflectivity of 99.5%. In addition, the reflectivity of the mid-IR grating peaks for different orders was also studied, and a 2nd-order FBG with a reflectivity of 98.8% was obtained at 2864 nm. Finally, the temperature characteristics of a mid-IR FBG were studied between 30 °C and 150 °C, showing a linear wavelength dependence and an excellent stability for the refractive index modulation. Such highly reflectivity FBGs in AlF3 fiber have significant potential for applications in the development of compact all-fiber mid-IR fiber lasers.

AB - This letter reports the fabrication of fiber Bragg gratings (FBGs) within in-house fabricated fluoroaluminate (AlF3) glass fibers using femtosecond (fs) laser inscription at 800 nm. The grating strength of the FBGs was investigated for different pulse energies and different orders, and a 3rd-order FBG with Bragg wavelength at 1557 nm was found to have the highest reflectivity of 99.5%. In addition, the reflectivity of the mid-IR grating peaks for different orders was also studied, and a 2nd-order FBG with a reflectivity of 98.8% was obtained at 2864 nm. Finally, the temperature characteristics of a mid-IR FBG were studied between 30 °C and 150 °C, showing a linear wavelength dependence and an excellent stability for the refractive index modulation. Such highly reflectivity FBGs in AlF3 fiber have significant potential for applications in the development of compact all-fiber mid-IR fiber lasers.

KW - Fiber Bragg gratings

KW - femtosecond laser

KW - fluoroaluminate glass fiber

UR - https://www.scopus.com/pages/publications/85126550687

U2 - 10.1109/JPHOT.2022.3159556

DO - 10.1109/JPHOT.2022.3159556

M3 - Article

SN - 1943-0655

VL - 14

JO - IEEE Photonics Journal

JF - IEEE Photonics Journal

IS - 2

M1 - 5119105

ER -

Direct Femtosecond Laser Inscription of High-Order Bragg Gratings in Fluoroaluminate Glass Fiber

Abstract

Keywords

Access to Document

Fingerprint

Cite this