Study on the spectral properties of Yb:KGW crystal

Wenqin Yang; Ji Wu; Lihua Guo; Shaozhen Lv; Shangyuan Feng; Yu Chen; Junjie Yang

doi:10.1117/12.783666

14 November 2007 Study on the spectral properties of Yb:KGW crystal

Wenqin Yang, Ji Wu, Lihua Guo, Shaozhen Lv, Shangyuan Feng, Yu Chen, Junjie Yang

Proceedings Volume 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 67224J (2007) https://doi.org/10.1117/12.783666
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

The absorption and fluorescent spectra for 5at.%Yb³⁺doped KGW crystal which is cut and polished along the crystal axis at room temperature are presented in the paper. The absorption cross section stimulated emission cross section and fluorescence time were calculated with reciprocity method. It is well know that Yb:KGW is a double axes crystal, its a, b and c axes are not perpendicularly cross with each other. So it is not easy to immediately find out its optical polarization effect. To investigate spectral polarization property, a sample of Yb:KGW cut along its main axis of refractive index was used. There were quite different from each other for every ch setting. However, when the pumping light (~980nm) is polarized in the refractive index main axis Np (i.e. E||Np) and propagates along the other refractive index main axis Ng, the most intensive absorption and fluorescence (1025nm) will be obtained.

Citation Download Citation

Wenqin Yang, Ji Wu, Lihua Guo, Shaozhen Lv, Shangyuan Feng, Yu Chen, and Junjie Yang "Study on the spectral properties of Yb:KGW crystal", Proc. SPIE 6722, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 67224J (14 November 2007); https://doi.org/10.1117/12.783666

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