Bridgman growth and spectral properties of Er:Yb:Bi4Si3O12 crystals for 1.5-1.6μm laser

Yongpan Li; Yan Zhang; Ming Xi; Hui Shen; Jiayue Xu

doi:10.1117/12.3048753

5 December 2024 Bridgman growth and spectral properties of Er:Yb:Bi₄Si₃O₁₂ crystals for 1.5–1.6μm laser

Yongpan Li, Yan Zhang, Ming Xi, Hui Shen, Jiayue Xu

Proceedings Volume 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024); 134183O (2024) https://doi.org/10.1117/12.3048753
Event: 15th International Conference on Information Optics and Photonics (CIOP2024), 2024, Xi’an, China

Abstract

Er³⁺ and Yb³⁺ co-doped bismuth silicate (Bi₄Si₃O₁₂, BSO) crystals were grown by a modified vertical Bridgman method for 1.5-1.6μm laser application. Fixed the ratio of Er³⁺ and Yb³⁺ at 1:9, (Er_xYb_yBi1_-x-y)₄Si₃O₁₂ crystals with 2mol%(x=0.002, y=0.018), 3mol%(x=0.003, y=0.027) and 4mol%(x=0.004, y=0.036) were obtained. Their transmittance was about 80%. The absorption spectrum shows that Er:Yb: BSO crystals have the strongest absorption peak at 976nm, which is attributed to the absorption of Yb ions, and the strongest emission peak recorded by the emission spectrum is at 1544nm, which is due to the up-conversion effect of Yb ions to Er ions, thus enhancing the emission of Er ions at 1544 nm. Among them, 3mol% co-doped BSO crystal with optimized composition of x=0.003 and y=0.027 shows the strongest absorption and emission peak. Its absorption and emission cross sections are 2.99×10^-20 cm² and 1.1452×10^-20 cm² , respectively. The results demonstrate that the Er:Yb:BSO crystals are potential material for 1.5-1.6μm laser.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yongpan Li, Yan Zhang, Ming Xi, Hui Shen, and Jiayue Xu "Bridgman growth and spectral properties of Er:Yb:Bi₄Si₃O₁₂ crystals for 1.5–1.6μm laser", Proc. SPIE 13418, Fifteenth International Conference on Information Optics and Photonics (CIOP 2024), 134183O (5 December 2024); https://doi.org/10.1117/12.3048753

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