Ultiquest Tech. Home SearchSitme MapDownloadsContact Uszero
crystals topbar Nd:YVO4 crystals  
Nd:YVO4 CRYSTALS Download PDF document

Yttrium vanadate has been growing in popularity because of its high gain, low threshold, and high absorption coefficients at pumping wavelengths, which result from the excellent fit of the neodymium dopant in the crystal lattice. These advantages make Nd:YVO4 is a better choice than Nd:YAG for low-power devices such as hand-held pointers, and others compact lasers.

Physical and Optical Properties:
Properties Values

Crystal Structure

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


4.22 g/cm2

Mohs Hardness

Glass-like, ~5

Atomic Density

~1.37*1020 atoms/cm2

Thermal Expansion Coefficient

aa=4.43*10-6 /K, aa=11.37*10-6/K

Thermal Conductivity Coefficient

IIC:5.23 W/m/K; ┷ C: W/m/K

Peak Absorption Wavelength

808.5 nm

Lasing Wavelength

912.6 nm, 1063.1 nm, 1341.3 nm

Crystal Class

Positive uniaxial, no=na=nb ne=ncno=1.9854, ne=2.1981,@ 1064nmno=2.0382, ne=2.2929, @ 532nmno=1.9977, ne=2.2198, @ 808nm

Thermal Optical Coefficient


Stimulated Emission Cross-Section

7.60x10-19cm2 , @1064 nm

Fluorescent LifetimeNd=1.2 atm%

95 ms @ 808 nm

Loss Coefficient

0.003 cm-1@ 1064 nm

Absorption CoefficienceNd=1.2 atm%

74 cm-1 @ 808 nm

Absorption LengthNd=1.2 atm%

0.18 mm @ 808 nm

Intrinsic LossNd=1.2 atm%

Less 0.1% cm-1 , @1064 nm

Line width

0.6 nm

Polarized Laser Emission

p parallel to optic axis (c-axis)

Diode Pumped Optical to Optical Efficiency

> 60%

Sellmeier Equation (for pure GdVO4 crystals)

ne2=4.734369 + 0.1216149/(l2 - 0.0523664) - 0.013927l2 no2=3.8987165+0.05990622/(l2 - 0.0514395) - 0.011319l2

Our Manufacture Technical Capabilities:
Nd dopant concentration: 0.1~3 atm% Tolerance within 10% of concentration
Width*Height: 1*1~ 16*16mm
Length: 0.02 ~ 20mm
Orientation: a-cut crystalline direction(+/-0.20)
Dimensional tolerance: +/-0.1mm(typical)High precision +/-0.005mm can be available upon request.
Wavefront Distortion: <l/8@633nm
Surface quality: better than 20/10 Scratch/Dig per MIL-O-1380A
Parallelism: < 10 arc seconds
Perpendicularity: < 5 arc minutes
Surface flatness: <l/10 at 632.8nm
Clear aperture: Central 95%
Chamfer: 0.15x450
Damage threshold: over 15J/cm2 (rods without coating) over 700 MW/cm2 (coating)
Coating: AR@1063nm, R< 0.1% & HT@808nm, T>95%
HR@1063nm, R>99.8% & HT@808nm, T>95%
HR@1063nm, R>99.8%, HR@532 nm, R>99% & HT@808 nm, T>95%
AR@1063 nm, R<0.1%
Please Contact ultiQuest for more information and technical supports.
Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.
product Index
Undoped YVO4
LiNbO3 Crystals
Undoped YAG
Sapphire Crystals
Nd:YVO4 Crystals
Nd:GdVO4 Crystals
Nd:YAG Crystals
Ti:Sapphire Crystals

















Contact Us
  For more information on product,please contact our product manager Mr.Grand Liu by email: info@ultiquestcom.com
  Copyright 1999-2011 Ultiquest Technology Ltd. | Privacy Policy | Terms of Delivery | Links Exchange | Web Mail Site Credits