Chinese Optics Letters, 2016, 14 (2): 021406, Published Online: Sep. 21, 2018  

Anisotropy of laser emission in monoclinic Nd:ScYSiO5 crystals cut along the optical indicatrix axes

Author Affiliations
1 College of Electronic, Communication and Physics, Shandong University of Science and Technology, Qingdao 266590, China
2 Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, China
3 State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, China
Abstract
In this Letter, we demonstrate the anisotropy of laser emission in disordered Nd:ScYSiO5 (Nd:SYSO) crystals cut along the optical indicatrix axes. High-powered lasers with different oscillation wavelengths and polarizations are realized by using different oriented crystals as gain media. For Y-cut crystals, the dual-wavelength laser vibration direction is found to be along the X axis and a maximum output power of 9.43 W is obtained, giving an optical-to-optical conversion efficiency of 48.8% and a slope efficiency of 51.3%. For X- and Z-cut crystals, 1075 and 1078 nm lasers operating orthogonally polarize oscillate with total output powers of 7.07 and 8.43 W, respectively. The experimental results reveal that the intrinsic anisotropy for the monoclinic disordered laser crystals could make laser design flexible and controllable.

Shande Liu, Lihe Zheng, Jun Xu, Yuping Zhang, Huiyun Zhang, Dehua Li, Tingqi Ren, Baitao Zhang, Jingliang He. Anisotropy of laser emission in monoclinic Nd:ScYSiO5 crystals cut along the optical indicatrix axes[J]. Chinese Optics Letters, 2016, 14(2): 021406.

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