Output characteristics of LMA Yb3+-doped photonic crystal fiber lasers

Hongxin Su; Zelin Guan; Jiang Sun; Qinglin Guo

doi:10.1117/12.835661

29 August 2009 Output characteristics of LMA Yb³⁺-doped photonic crystal fiber lasers

Hongxin Su, Zelin Guan, Jiang Sun, Qinglin Guo

Proceedings Volume 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging; 738250 (2009) https://doi.org/10.1117/12.835661
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

The output characteristics of fiber lasers built with large-mode-area(LMA) Yb³⁺-doped double-clad PCF are experimentally investigated. The gain fiber used in the experimental setup is a LMA Yb³⁺-doped double-clad PCF, which contains an Yb³⁺-doped core of 23μm in diameter and a holy inner clad of 420μm in diameter. In the forwardoutput configuration the maximum output is 3.43W and the slope efficiency is 34.6%. At the same pump power, the maximum output in the backward-output configuration is 3.63W and the slope efficiency is 38%. The spectra show that the fiber lasers in both forward-output and backward-output configurations produce multi-wavelength output in a range from 1067nm to 1076nm and unstable. Single wavelength output at 1067.5 nm with a FWHM of about 0.2nm is demonstrated by using a dual-end-output configuration, and a maximum output of 4.25W with a slope efficiency of 44.1% is obtained.

Citation Download Citation

Hongxin Su, Zelin Guan, Jiang Sun, and Qinglin Guo "Output characteristics of LMA Yb³⁺-doped photonic crystal fiber lasers", Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 738250 (29 August 2009); https://doi.org/10.1117/12.835661

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