Crystals Materials
Nd:YVO4 Crystals for aerospace, medical, and industrial applications
nd-yvo4-laser-crystal
  • Nd Concentration: 0.07 ~ 3 atm%
  • Orientation: a-cut or c-cut
  • Surface Quality: 10/5 Scratch/Dig MIL-O-1380A
  • Parallelism: < 10″
  • Perpendicularity: < 5'
  • Clear Aperture: > 90%
  • Surface Flatness: < λ/10 @ 632.8 nm
  • Coating: AR/HR/PR coating upon customer's request
  • Quality Warranty Period: One year
  • Nd:YVO4 crystal has been incorporated with high nonlinear coefficient crystals ( LBO, BBO, or KTP) to frequency-shift the output from the near infrared to green, blue, or even UV. Nd:YVO4 crystal has much higher absorption and emission cross-sections, a broader gain bandwidth and wavelength range for pumping, a shorter upper-state lifetime, a higher refractive index, thus it is characterized by a lower thermal conductivity. Nd:YVO4 crystals are well suited for passively mode-locked lasers with high pulse repetition rates.

    Specifications of Nd:YVO4 Crystal
    Nd Doping 0.07 ~ 3 atm%
    Orientation a-cut/c-cut +/-0.5deg.
    Dimension Tolerances ±0.05 mm
    Surface Quality 10/5 S/D
    Parallelism < 10 arcsec
    Perpendicularity < 5 arcmin
    Clear Aperture > 90%
    Wavefront Distortion λ/10 @ 633 nm
    Surface Flatness < λ/10 @ 632.8 nm
    Chamfer < 0.1 mm @ 45°
    Coating AR/HR/PR coating upon customer's request
    Damage Threshold 750mW/cm2 at 1064 nm, TEM00, 10 ns, 10Hz
    Physical and chemical properties
    Property Value
    Crystal Structure Zircon Tetragonal, space group D4h-I4/amd
    Lattice Constant a=b=7.12, c=6.29
    Density 4.22g/cm3
    Melting Point 1825°C
    Thermal Conductivity (W/m/k@25°C) 5.2
    Thermal Optical Coefficient(dn/dT) dno/dT=8.5×10-6/K; dne/dT=2.9×10-6/K
    Thermal Expansion / (10-6·K-1@25°C ) a = 4.43, c= 11.4
    Hardness (Mohs) 4~5
    Optical properties
    Laser Wavelength 1064 nm, 1342 nm
    Polarized Laser Emission π polarization; parallel to optic axis (c-axis)
    Pump Wavelength 808 nm
    Intrinsic Loss 0.02 cm-1 @1064 nm
    Diode Pumped Optical to Optical Efficiency >60%
    Emission Cross Section 25 x 10-19 cm2 @1064 nm
    Fluorescence Lifetime 90 μs (about 50 μs for 2 atm% Nd doped) @ 808 nm
    Gain Bandwidth 0.96 nm @1064 nm
    Absorption Coefficient 31.4 cm-1 @ 808 nm
    Absorption Length 0.32 mm @ 808 nm
    Gain Bandwidth 0.96 nm (257 GHz) @ 1064 nm

    Stock specification list

    If need other specifications and quantities products, please contact us(sales@aogcrystal.com).
    Part Number Face size Length Doping, atm.% Coating
    Nd-YVO4-001 3.0*3.0 mm 10.0 mm 0.5 HR@1064+532+HT@808/AR@1064+532 nm
    Nd-YVO4-002 3.0*3.0 mm 6.0 mm 0.5 AR/AR@1064 + 808 nm
    Nd-YVO4-003 3.0*3.0 mm 4.0 mm 1.0 AR/AR@1064 + 808 nm
    Nd-YVO4-004 3.0*3.0 mm 0.5 mm 3.0 HR@1064+532+HT@808/AR@1064+532nm

    Notes

  • Anti-reflection coatings are available at your specified wavelength.
  • Be sure to wear laser safety goggles when checking optical path and adjusting optical axis.
  • To inquiry or order a finished Nd:YVO4 laser rod, please specify the specification listed above, for common application, we only need to know the main specification: Nd-dopant concentration, sizes, and coating. For special request, please specify specification in details for evaluation and fabrication.
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