Anisotropy of the thermal and laser output properties in Yb,Nd:Sc<sub>2</sub>SiO<sub>5</sub> crystal

Yuqing Zhao; Qiangguo Wang; Lihua Meng; Yongping Yao; Shande Liu; Na Cui; Liangbi Su; Lihe Zheng; Huiyun Zhang; Yuping Zhang

doi:10.3788/COL202119.041405

Chinese Optics Letters, Volume. 19, Issue 4, 041405(2021)

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

Yuqing Zhao¹, Qiangguo Wang¹, Lihua Meng¹, Yongping Yao¹, Shande Liu^1,2、*, Na Cui¹, Liangbi Su³, Lihe Zheng^4、**, Huiyun Zhang¹, and Yuping Zhang^1、***

Author Affiliations

¹College of Electronic and Information Engineering, Shandong University of Science and Technology, Qingdao 266590, China

²Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan 250358, China

³Key Laboratory of Transparent and Opto-functional Inorganic Materials, Artificial Crystal Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China

⁴School of Physics and Astronomy, Yunnan University, Kunming 650091, China

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Figures & Tables(8)

Fig. 1. Experimental setup of $Yb, Nd : {Sc}_{2} {SiO}_{5}$ lasers. (a) CW laser; (b) tunable laser.

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Fig. 2. Thermal properties of the $Yb, Nd : {Sc}_{2} {SiO}_{5}$ crystal versus temperature. (a) Specific heat; (b) thermal diffusion coefficient; (c) thermal expansion coefficient; (d) density.

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Fig. 3. Calculated thermal conductivity in a single $Yb, Nd : {Sc}_{2} {SiO}_{5}$ crystal.

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Fig. 4. Relationship between the principal axis and crystallographic axis (a, b, c) in the $Yb, Nd : {Sc}_{2} {SiO}_{5}$ crystal.

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Fig. 5. Average output power versus absorbed pump power along different principal axes in the $Yb, Nd : {Sc}_{2} {SiO}_{5}$ crystal.

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Fig. 6. Tunable characteristics of the $Yb, Nd : {Sc}_{2} {SiO}_{5}$ crystals. (a), (d) X-cut crystal; (b), (e) Y-cut crystal; (c), (f) Z-cut crystal.

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Fig. 7. Multi-wavelength laser output spectra. (a) X-cut crystal; (b) Y-cut crystal; (c) Z-cut crystal.

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Table 1. Anisotropy of Output Parameters in an Yb,Nd:Sc₂SiO₅ Crystal Laser

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Table 1. Anisotropy of Output Parameters in an Yb,Nd:Sc₂SiO₅ Crystal Laser

Crystal Orientation	$T_{oc}$ (%)	CW		Tunable			Tuning Coverage (nm)
Crystal Orientation	$T_{oc}$ (%)	$P_{\max}$ (W)	$η$ (%)	$P_{thr}$ (W)	$P_{\max}$ (W)	$η$ (%)	Tuning Coverage (nm)
X-cut (E $∥$ Y)	1	2.05	29.78	1.82	0.12	14.42	1040–1099 (59)
	3	3.48	42.80	1.97	2.33	29.27	1037–1092 (55)
	10	6.09	48.56	2.49	3.90	43.20	1031–1088 (57)
Y-cut (E $∥$ Z)	1	1.44	19.60	2.05	0.63	11.98	1038–1098 (60)
	3	2.82	35.52	2.06	2.04	27.64	1035–1096 (61)
	10	3.60	40.56	2.62	3.06	32.83	1031–1088 (57)
Z-cut (E $∥$ Z)	1	1.49	21.96	2.10	1.02	14.57	1040–1096 (56)
	3	3.46	41.81	2.23	2.35	27.59	1032–1097 (65)
	10	4.62	50.43	2.50	3.30	39.18	1033–1088 (55)

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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[J]. Chinese Optics Letters, 2021, 19(4): 041405

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