福州美扬光电有限公司可提供各种规格的高质量,大尺寸的掺钕钒酸钇（Nd:YVO4）晶体. 欢迎电询！欢迎电询！

掺钕钒酸钇（Nd:YVO4）晶体是一种性能优良的激光晶体，适于制造激光二极管泵浦特别是中低功率的激光器。与Nd:YAG相比Nd:YVO4对泵浦光有较高的吸收系数和更大的受激发射截面。激光二极管泵浦的Nd:YVO4晶体与LBO,BBO,KTP等高非线性系数的晶体配合使用，能够达到较好的倍频转换效率，可以制成输出近红外、绿色、蓝色到紫外线等类型的全固态激光器。现在Nd:YVO4激光器已在多个领域得到广泛的应用。而且Nd:YVO4二极管泵浦固态激光器正在迅速取代传统的水冷离子激光器和灯泵浦激光器的市场，尤其是在小型化和单纵模输出方面。



Capabilities:


Nd dopant:

0.27%, 0.3%, 0.4%, 0.5%, 0.7%, 1.0%, 2.0%, 3.0%

Width x Height:

1x1 ~ 16x16mm

Length:

0.02 ~ 20mm



Specifications:


Orientation:

a-cut( ± 0.5° )

Dimensional Tolerance:

+/-0.1mm

Wavefront Distortion:

<λ/8 at 633nm

Surface Quality:

20/10

Parallelism:

< 10 arc seconds

Perpendicularity:

< 5 arc minutes

Surface Flatness:

<λ/10 at 632.8nm

Clear Aperture:

Central 95%

Chamfer:

0.15x45°

Coating:

1.AR@1064nm R<0.1%
2.AR@1064nm R< 0.1% & HT@808nm T>95% 
3.HR@1064nm R>99.8% & HR@532nm R>99% & HT@808nm T>95%



Properties: 


Atomic Density

~1.37x1020 atoms/cm2

Crystal Structure

Zircon Tetragonal, space group D4h, a=b=7.12, c=6.29

Density

4.22 g/cm3

Mohs Hardness

Glass-like, ~5

Thermal Expansion Coefficient

aa=4.43x10-6/K, ac=11.37x10-6/K

Thermal Conductivity Coefficient

||C: 5.23 W/m/K; ^C: 5.10 W/m/K

Lasing Wavelengths

914nm, 1064 nm, 1342 nm

Crystal Class

positive uniaxial, no=na=nb ne=nc
no=1.9573, ne=2.1652, @ 1064nm
no=1.9721, ne=2.1858, @ 808nm
no=2.0210, ne=2.2560, @ 532nm

Thermal Optical Coefficient

dna/dT=8.5x10-6/K, dnc/dT=3.0x10-6/K

Stimulated Emission Cross-Section

25.0x10-19 cm2 , @1064 nm

Fluorescent Lifetime

90 ms (about 50 ms for 2 atm% Nd doped) @ 808 nm

Absorption Coefficient

31.4 cm-1 @ 808 nm

Absorption Length

0.32 mm @ 808 nm

Intrinsic Loss

Less 0.1% cm-1 , @1064 nm

Gain Bandwidth

0.96 nm (257 GHz) @ 1064 nm

Polarized Laser Emission

p parallel to optic axis (c-axis)

Diode Pumped Optical to Optical fficiency

> 60%