Direct femtosecond laser inscription of Bragg gratings in Ho3+/Pr3+ co-doped AlF3-based glass fibers for a 2.86 µm laser
Direct femtosecond laser inscription of Bragg gratings in Ho3+/Pr3+ co-doped AlF3-based glass fibers for a 2.86 µm laser
In this Letter, we report the fabrication of fiber Bragg gratings (FBGs) in home-made Ho3+/Pr3+ co-doped single-cladding fluoroaluminate (AlF3) glass fibers and its application in watt-level lasing at the mid-infrared (MIR) wavelength of 2.86 µm. The FBGs were inscribed using an 800 nm femtosecond (fs) laser direct-writing technique. The FBG properties were investigated for different pulse energies, inscription speeds, grating orders, and transversal lengths. A second-order FBG with a high reflectivity of 99% was obtained at one end of a 16.5-cm-long gain fiber. Under 1150 nm laser pumping, this fiber yielded a power exceeding 1 W at 2863.9 nm with an overall laser efficiency of 17.7%. The fiber laser showed a FWHM bandwidth of 0.46 nm and long-term spectral stability.
597 - 600
Xu, Niannian
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Yang, Zhiyong
50d1fc8f-7275-4d82-8f25-9c550112d45e
Zhang, Jiquan
cf0cf01c-73af-4c49-aa26-da6c46969a5b
Lv, Nian
e974d432-d493-4efd-bcbf-9d33fe7ff3bc
Liu, Mo
d38274f8-59eb-48ec-90a3-a909acc3b75d
Wang, Ruoning
7885dd3d-4b86-438c-9d35-bd971803762f
Li, Zhenrui
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Jia, Shijie
1f2ca0bb-c36c-4d5a-af56-3f8b3cd80be0
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Wang, Shunbin
70976916-f2c8-4a61-b0ba-2cdd77286bea
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
1 February 2022
Xu, Niannian
78a18a3b-6f53-4237-a0a3-6d1ebf74d126
Yang, Zhiyong
50d1fc8f-7275-4d82-8f25-9c550112d45e
Zhang, Jiquan
cf0cf01c-73af-4c49-aa26-da6c46969a5b
Lv, Nian
e974d432-d493-4efd-bcbf-9d33fe7ff3bc
Liu, Mo
d38274f8-59eb-48ec-90a3-a909acc3b75d
Wang, Ruoning
7885dd3d-4b86-438c-9d35-bd971803762f
Li, Zhenrui
1391dc53-7a85-4181-b941-5995d5d49bd5
Jia, Shijie
1f2ca0bb-c36c-4d5a-af56-3f8b3cd80be0
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Wang, Shunbin
70976916-f2c8-4a61-b0ba-2cdd77286bea
Wang, Pengfei
a1ba240f-d4f0-4150-bcd8-cb418e841dcb
Xu, Niannian, Yang, Zhiyong, Zhang, Jiquan, Lv, Nian, Liu, Mo, Wang, Ruoning, Li, Zhenrui, Jia, Shijie, Brambilla, Gilberto, Wang, Shunbin and Wang, Pengfei
(2022)
Direct femtosecond laser inscription of Bragg gratings in Ho3+/Pr3+ co-doped AlF3-based glass fibers for a 2.86 µm laser.
Optics Letters, 47 (3), .
(doi:10.1364/OL.448431).
Abstract
In this Letter, we report the fabrication of fiber Bragg gratings (FBGs) in home-made Ho3+/Pr3+ co-doped single-cladding fluoroaluminate (AlF3) glass fibers and its application in watt-level lasing at the mid-infrared (MIR) wavelength of 2.86 µm. The FBGs were inscribed using an 800 nm femtosecond (fs) laser direct-writing technique. The FBG properties were investigated for different pulse energies, inscription speeds, grating orders, and transversal lengths. A second-order FBG with a high reflectivity of 99% was obtained at one end of a 16.5-cm-long gain fiber. Under 1150 nm laser pumping, this fiber yielded a power exceeding 1 W at 2863.9 nm with an overall laser efficiency of 17.7%. The fiber laser showed a FWHM bandwidth of 0.46 nm and long-term spectral stability.
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Accepted/In Press date: 16 December 2021
Published date: 1 February 2022
Additional Information:
Funding Information:
Funding. National Natural Science Foundation of China (61905048, 61935006, 62005060, 62005061, 62090062); Natural Science Foundation of Heilongjiang Province (LH2020F030); National Key Research and Development Program of China (2020YFA0607602); Shenzhen Technical Project (JCYJ20190808173619062); 111 Project to the Harbin Engineering University (B13015); Heilongjiang Touyan Innovation Team Program; Fundamental Research Funds for the Central Universities (3072021CF2514, 3072021CF2533).
Publisher Copyright:
© 2022 Optica Publishing Group
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Local EPrints ID: 456118
URI: http://eprints.soton.ac.uk/id/eprint/456118
ISSN: 0146-9592
PURE UUID: 8e47821a-9f6e-4984-bb8d-66bf4637cbc6
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Date deposited: 26 Apr 2022 14:54
Last modified: 17 Mar 2024 07:12
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Contributors
Author:
Niannian Xu
Author:
Zhiyong Yang
Author:
Jiquan Zhang
Author:
Nian Lv
Author:
Mo Liu
Author:
Ruoning Wang
Author:
Zhenrui Li
Author:
Shijie Jia
Author:
Shunbin Wang
Author:
Pengfei Wang
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