Experimental and theoretical research of quasi-three level Ho3+-doped fluorotellurite photonic crystal fiber lasers

Cheng Zhou; Hai-kun Zhang; Peng Song; Tao Chen; Ya-ping Zhang

doi:10.1117/12.2537916

18 December 2019 Experimental and theoretical research of quasi-three level Ho³⁺-doped fluorotellurite photonic crystal fiber lasers

Cheng Zhou, Hai-kun Zhang, Peng Song, Tao Chen, Ya-ping Zhang

Author Affiliations +

Proceedings Volume 11333, AOPC 2019: Advanced Laser Materials and Laser Technology; 1133302 (2019) https://doi.org/10.1117/12.2537916
Event: Applied Optics and Photonics China (AOPC2019), 2019, Beijing, China

Abstract

A Ho³⁺-doped photonic crystal fiber laser with output wavelength of 2077nm has been demonstrated using a 1992nm Tm³⁺-doped fiber laser with output wavelength of 1992nm as a pump source. And the optical- optical conversion slope efficiency is 41.3%. In order to optimize the output power of the Ho³⁺-doped photonic crystal fiber laser, a simple quasi-three level system theoretical modeling is developed in the condition of Stark-splitted energy level diagram of holmium ion. We obtain the theoretical optical- optical conversion slope efficiency 43.5%, which is higher than the experimental 41.3%. Furthermore, the relative deviation of the η is 5%, which shows the theoretical data is good agreement with experimental data. According to the modeling, the influence factors of the output power have been theoretically studied, in detail. The results show that there are an optimal range of Ho³⁺-doped concentration n₀, transmittance of coupled output mirror T₂ and length of the PCF L, respectively. Furthermore, the output power is approximately equal to maximum in the range of the optimal value.

Citation Download Citation

Cheng Zhou, Hai-kun Zhang, Peng Song, Tao Chen, and Ya-ping Zhang "Experimental and theoretical research of quasi-three level Ho³⁺-doped fluorotellurite photonic crystal fiber lasers", Proc. SPIE 11333, AOPC 2019: Advanced Laser Materials and Laser Technology, 1133302 (18 December 2019); https://doi.org/10.1117/12.2537916

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