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Large Birefringence Diode Pumping Uniaxial Nd YVO4 Laser Crystals

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Large Birefringence Diode Pumping Uniaxial Nd YVO4 Laser Crystals

Large Birefringence Diode Pumping Uniaxial Nd YVO4 Laser Crystals
Large Birefringence Diode Pumping Uniaxial Nd YVO4 Laser Crystals Large Birefringence Diode Pumping Uniaxial Nd YVO4 Laser Crystals

Large Image :  Large Birefringence Diode Pumping Uniaxial Nd YVO4 Laser Crystals

Product Details:
Place of Origin: HEFEI, CHINA
Brand Name: JOPTEC
Payment & Shipping Terms:
Minimum Order Quantity: 1 PCS
Packaging Details: Boxes
Delivery Time: 30 Days
Payment Terms: T/T
Supply Ability: 5000000 PCS/Month

Large Birefringence Diode Pumping Uniaxial Nd YVO4 Laser Crystals

Material: Nd:YVO4 Dopant Concentration: 0.1 – 3at%
Orientation: A-cut Or C-cut Dimension Tolerance: W(+/-0.1)×H(+/-0.1)×L(+/-0.5)mm
Wavefront Distortion: <λ/8 @633nm Chamfer: <0.15×45°
Scratch/Dig: 10-5@MIL-0-13830A Parallelism: <20 Arc Seconds
Damage Threshold: 1GW/cm2@1064nm 10ns 10HZ Anti-Reflection Coating: R<0.2%@1064nm
High Light:

Neodymium-doped yttrium orthovanadate


Nd YVO4 active laser medium


Nd YVO4 crystalline material


Nd:YVO4 is the most efficient laser host crystal for diode pumping among the current commercial laser crystals, especially, for low to middle power density. This is mainly for its absorption and emission features surpassing Nd:YAG. Pumped by laser diodes, Nd:YVO4 crystal has been incorporated with high NLO coefficient crystals ( LBO, BBO, or KTP) to frequency-shift the output from the near infrared to green, blue, or even UV. This incorporation to construct all solid state lasers is an ideal laser tool that can cover the most widespread applications of lasers, including machining, material processing, spectroscopy, wafer inspection, light displays, medical diagnostics, laser printing, and data storage, etc. It has been shown that Nd:YVO4 based diode pumped solid state lasers are rapidly occupying the markets traditionally dominated by water-cooled ion lasers and lamp-pumped lasers, especially when compact design and single-longitudinal-mode outputs are required.


Nd:YVO4's advantages over Nd:YAG:
• As high as about five times larger absorption efficient over a wide pumping bandwidth around 808 nm ( therefore, the dependency on pumping wavelength is much lower and a strong tendency to the single mode output);
• As large as three times larger stimulated emission cross-section at the lasing wavelength of 1064nm;
• Lower lasing threshold and higher slope efficiency;
• As a uniaxial crystal with a large birefringence, the emission is only a linearly polarized.



Material Nd:YVO4
Dopant Concentration 0.1 – 3at%
Orientation A-cut or C-cut
Dimension tolerance W(+/-0.1)×H(+/-0.1)×L(+/-0.5)mm
wavefront distortion <λ/8 @633nm
Chamfer <0.15×45°
Clear Aperture >90%
Flatness λ/10@ 633 nm
Chips <0.1mm
Scratch/Dig 10-5@MIL-0-13830A
Perpendicularity ≤5 arc minutes
Parallelism <20 arc seconds
Damage threshold 1GW/cm2@1064nm 10ns 10HZ
Anti-Reflection coating R<0.2%@1064nm




Crystal structure Tetragonal System
Point Group D4h
Density 4.22 g/cm2
Mohs Hardness 4-5
Thermal Expansion Coefficient αa=4.43×10-6/K αc=11.37×10-6/K
Thermal Conductivity Coefficient ⊥C: 51mw/cm.k //C: 52.3 mw /cm.k(300k)
Laser Wavelength 1064nm, 1342nm
Pump wavelength 808nm
Stimulated emission cross-section 25×10-19cm2 @ 1064nm
Fluorescent lifetime 90μs(1% Nd doping)
Absorption coefficient 31.4cm-1 @810nm
Intrinsic loss 0.02cm-1 @1064nm
Gain bandwidth 0.96nm@1064nm
Polarized laser emission p polarization; parallel to optic axis(c-axis)

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Contact Person: JACK HAN

Tel: 86-18655618388

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