Fabrication of high-power fiber Bragg grating in double-clad fiber by femtosecond laser plane-by-plane technology

Cailing Fu; Yu Fan; Changrui Liao; Jun He; Weijia Bao; Yiping Wang

doi:10.1117/12.2669077

21 March 2023 Fabrication of high-power fiber Bragg grating in double-clad fiber by femtosecond laser plane-by-plane technology

Cailing Fu, Yu Fan, Changrui Liao, Jun He, Weijia Bao, Yiping Wang

Author Affiliations +

Proceedings Volume 12595, Advanced Fiber Laser Conference (AFL2022); 1259529 (2023) https://doi.org/10.1117/12.2669077
Event: Advanced Fiber Laser Conference (AFL2022), 2022, Changsha, China

Abstract

Two types of FBG were fabricated in the 20/400μm passive Double-Clad Fiber (DCF) without coating (w/o-coating) and with coating (w-coating) by femtosecond laser plane-by-plane technology. The w/o-coating FBG with a central wavelength of 1060.62 nm, a reflectivity greater than 99.5% and a 3dB-bandwidth of 3.52 nm, the w-coating FBG with a central wavelength of 1080.10 nm, a reflectivity greater than 99.9% and a 3dB-bandwidth of 2.87 nm, respectively. To the best of our knowledge, this is the first report of fabricating high quality fiber Bragg grating in 20/400μm DCF using femtosecond laser direct writing method.

Citation Download Citation

Cailing Fu, Yu Fan, Changrui Liao, Jun He, Weijia Bao, and Yiping Wang "Fabrication of high-power fiber Bragg grating in double-clad fiber by femtosecond laser plane-by-plane technology", Proc. SPIE 12595, Advanced Fiber Laser Conference (AFL2022), 1259529 (21 March 2023); https://doi.org/10.1117/12.2669077

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