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Anisotropy of the thermal and laser output properties in Yb,Nd:Sc2SiO5 crystal

Yuqing Zhao, Qiangguo Wang, Lihua Meng, Yongping Yao, Shande Liu, Na Cui, Liangbi Su, Lihe Zheng, Huiyun Zhang, Yuping Zhang
2021 Chinese Optics Letters (COL)  

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The anisotropy of thermal property in an Yb,Nd∶Sc 2 SiO 5 crystal is investigated from the temperature of 293 to 573 K. Based on the systematical study of thermal expansion, thermal diffusivity, and specific heat, the thermal conductivity in Yb,Nd∶Sc 2 SiO 5 crystals orientated at (100), ( 010 ), (001), and ( 406 ) is calculated to be 3.46, 2.60, 3.35, and 3.68 W=m • K, respectively. The laser output anisotropy of a continuous-wave (CW) and tunable laser is characterized, accordingly. A maximum
more » ... output power of 6.09 W is achieved in the Yb,Nd∶Sc 2 SiO 5 crystal with (010) direction, corresponding to a slope efficiency of 48.56%. The tuning wavelength range in the Yb,Nd∶Sc 2 SiO 5 crystal orientated at (100), (010), and (001) is 68, 67, and 65 nm, separately. The effects of thermal properties on CW laser performance are discussed.
doi:10.3788/col202119.041405 fatcat:szuejt2g3na5hkbfy7f3z2umn4
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Yuqing Zhao, Qiangguo Wang, Lihua Meng, Yongping Yao, Shande Liu, Na Cui, Liangbi Su, Lihe Zheng, Huiyun Zhang, Yuping Zhang. "Anisotropy of the thermal and laser output properties in Yb,Nd:Sc2SiO5 crystal." Chinese Optics Letters (COL) 19.4 (2021) 041405