Yttrium Vanadate
Yttrium vanadate (YVO4) is an excellent birefringent crystal material and a positive uniaxial crystal. The crystal has good physical and mechanical properties, a wide transmission range, high transmittance, a large birefringence coefficient, and is easy to process. YVO4 crystals can replace calcite and ruby in fiber-optic communication applications, and are key materials in passive optical communication devices such as optical isolators, circulators, polarizing beamsplitters and polarizers.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Overview - Crystal Structure | Tetragonal zircon, space group D4h |
| Overview - Density | 4.22g/cm^3 |
| Overview - Mohs Hardness | 5, close to glass |
| Overview - Deliquescence | Non-deliquescent |
| Overview - Thermo-optic Coefficient | dna/dT=8.5x10^-6/K；dnc/dT=3.0x10^-6/K |
| Overview - Thermal Expansion Coefficient | aa=4.43x10^-6/K；ac=4.43x10^-6/K |
| Overview - Crystal System | Positive uniaxial crystal no=na=nb, ne=nc |
| Overview - Refractive Index and Walk-off Angle at 45° (Δn=ne-no) | no=1.9929, ne=2.2154, dn=0.2225, p=6.04°, @630nm；no=1.9500, ne=2.1554, dn=0.2054, p=5.72°, @1300nm；no=1.9447, ne=2.1486, dn=0.2039, p=5.69°, @1550nm |
| Overview - Sellmeier Equation (λ in μm) | no^2=3.77834+0.069736/(λ^2-0.04724)-0.0108133λ^2；ne^2=4.59905+0.110534/(λ^2-0.04813)-0.0122676λ^2 |
| Overview - Application 1: Polarizing Beam Splitter | Application 2: polarization beam combiner |
| Pointing Accuracy | ±0.5° |
| Clear Aperture Dimension | >90% |
| Transmitted Wavefront Distortion | <λ/2@633nm |
| Parallelism | <15 arcsec |
| Specification - Side Perpendicularity | <10 arcmin |
Applications
Datasheet
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Supplier Information
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