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Laser Crystals

  • Product Name: Nd:GdVO4
  • Dopant Concentration Tolerance :+/- 0.1%
  • Parallelism:< 10 arc seconds
  • Perpendicularity:< 5 arc minutes
  • Chamfer:0.1mm at 45°
  • Clear Aperture:95%
  • Scratch and Dig:20/10 or better
  • Surface Flatness:λ/10 at 633nm
  • Wavefront Distortion:λ/8 at 633nm
  • Damage Threshold:Over 15 J/cm2 TEM00, 10ns, 10Hz

Product overview

Neodymium doped Gadolinium Orthovanadate (Nd:GdVO4) laser crystal has large stimulated emission cross section at laser wavelength, high absorption coefficient, low dependency and wide bandwidth at pump wavelength. We can offer Nd and no dopant GdVO4 laser crystals performing the specifications upon your request.

Scitlion is able to offer
Nd dopand concentration from 0.2% to 3% (atm%)
Rod diameter from 1mm to 35mm
Length from 1mm to 50mm
Coating upon your request

Physical and Optical Properties

Crystal Structure

Zircon Tetragonal, Space group D4h 

Lattice Constants

a=b=7.21, c=6.35

Density

5.47 g/cm3

Melting Point

1780℃

Thermal Expansion Coefficient

aa = 1.5 x 10-6/K at 300K

ac = 7.3 x 10-6/K at 300K

Thermal Conductivity

11.7 W/mK,  along  <110> axis

Lasing Wavelength

912.6 nm, 1063.1 nm, 1341.3 nm

Emission Cross Section 

7.6 x 10-19cm2 at 1064nm

Peak Absorption Wavelength

808.5 nm

Absorption Cross Section 

4.9 x 10-19cm2 at 808nm

Absorption Coefficient

74 cm-1 at 808nm

Absorption Length

0.18mm at 808nm

Refractive Index (at 1064nm)

no=1.972,  ne=2.192

Fluorescence Lifetime 

95μs (1.2% Nd)

Loss Coefficient

0.003 cm-1 at 1064nm

Intrinsic Loss 

< 0.1% cm-1 at 1064nm

Line Width

0.6 nm

Polarized Laser Emission

P Polarized, ∥Optical axis (c-axis)

Diode Pumped Optical to Optical Efficiency

> 60%

Sellmeier Equation (no doped GdVO4)

no2 = 4.734369 + 0.1216149/( λ2-0.0523664) – 0.13927λ2

ne2 = 3.8987165 + 0.05990622/( λ2-0.0514395) – 0.011319λ2