Anisotropy of laser emission in monoclinic Nd:ScYSiO<sub>5</sub> crystals cut along the optical indicatrix axes

Shande Liu; Lihe Zheng; Jun Xu; Yuping Zhang; Huiyun Zhang; Dehua Li; Tingqi Ren; Baitao Zhang; Jingliang He

doi:10.3788/COL201614.021406

Chinese Optics Letters, Volume. 14, Issue 2, 021406(2016)

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

Shande Liu^1、*, Lihe Zheng², Jun Xu², Yuping Zhang¹, Huiyun Zhang¹, Dehua Li¹, Tingqi Ren^1、**, Baitao Zhang³, and Jingliang He³

Author Affiliations

¹College of Electronic, Communication and Physics, Shandong University of Science and Technology, Qingdao 266590, China

²Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, China

³State Key Laboratory of Crystal Materials, Shandong University, Ji’nan 250100, China

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Figures & Tables(8)

Fig. 1. Schematic arrangement of the experimental laser setup.

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Fig. 2. Relationships between the principal axes (X,Y,Z) and the crystallographic axes (a,b,c): βaY=24.5° and βcZ=11.8°.

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Fig. 3. Room temperature absorption spectra for the X-, Y-, and Z-cut Nd:SYSO crystals.

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Fig. 4. Polarized emission cross-section spectra for the X-, Y-, and Z-cut Nd:SYSO crystals.

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Fig. 5. Average output power with respect to the absorbed pump power.

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Fig. 6. Laser spectra of Nd:SYSO crystals obtained with different conditions.

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Table 1. Polarized Emission Cross Section for F3/24→4I11/2 Transition Around 1.08 μm
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Table 1. Polarized Emission Cross Section for F3/24→4I11/2 Transition Around 1.08 μm
Peak Wavelength (nm) XPolarization ( $10^{- 20} {cm}^{2}$ ) YPolarization ( $10^{- 20} {cm}^{2}$ ) ZPolarization ( $10^{- 20} {cm}^{2}$ )
1074.2 9.98 10.00 9.25
1077.3 10.46 8.76 9.37

Table 2. Laser Performance of Nd:SYSO Crystals With Different Orientations

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Table 2. Laser Performance of Nd:SYSO Crystals With Different Orientations

Transmittance (%)	Crystal Orientation	Pump Threshold (W)	Max. Output ( $W^{'}$ )	Slope Efficiency(%)
5	X	0.76	7.07	53.6
	Y	0.43	9.43	51.3
	Z	0.53	8.43	55.9
10	X	1.14	6.86	53.3
	Y	0.55	9.30	51.3
	Z	0.55	8.34	55.9
40	X	4.41	3.05	32.6
	Y	2.69	5.35	33.3
	Z	2.67	5.29	39.3

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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," Chin. Opt. Lett. 14, 021406 (2016)

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