what are you looking for?
The Yttrium
Orthovanadate (YVO4) is a positive uniaxial crystal grown with Czochralski
method. It has good temperature stability and physical and mechanical
properties. It is ideal for optical polarizing components because of its wide
transparency range and large birefringence. It is an excellent synthetic
substitute for Calcite (CaCO3) and Rutile (TiO2) crystals in many applications
including fiber optic isolators and circulators, interleavers, beam displacers
and other polarizing optics.
Product Origin:
ChinaShipping Port:
Fuzhou, ChinaLead Time:
3-4weeks
Descriptions:
Yttrium Orthovanadate (YVO4) is ideal for optical polarizing components and in many applications including fiber optic isolators and circulators, interleavers, beam displacers and other polarizing optics.
Main applications:
1) Fiber-optic isolators
2) Beam displacers.
3) optical circulators
Comparison of basic properties betweenYVO4 and Other Birefringent Crystals.
|
|
YVO4 |
TiO2 |
CaCO3 |
LiNbO3 |
|
|
Thermal Expansion (/℃) |
c-axis |
11.4x10-6 |
9.2x10-6 |
26.3x10-6 |
16.7x10-6 |
|
a-axis |
4.4x10-6 |
7.1x10-6 |
5.4x10-6 |
7x10-6 |
|
|
Refractive Index |
no |
1.9447@1550nm |
2.454@1530nm |
1.6346@1497nm |
2.2151@1440nm |
|
ne |
2.1486@1550nm |
2.710@1530nm |
1.4774@1497nm |
2.1413@1440nm |
|
|
Birefringence(ne-no) |
0.2039@1550nm |
0.256@1530nm |
-0.1572@1497nm |
-0.0738@1440nm |
|
|
Mohs Hardness |
5 |
6.5 |
3 |
5 |
|
|
Deliquescence |
None |
None |
Weak |
None |
|
|
Transparency range |
0.4-5μm |
0.4-5μm |
0.35-2.3μm |
0.4-5μm |
|
Basice properties of YVO4 crystal:
|
Transparency Range |
High transmittance from 0.4 to 5μm |
|
|
Crystal Symmetry |
Zircon Tetragonal, space group D4h |
|
|
Crystal Cell |
a=b=7.12Å，c=6.29Å |
|
|
Density |
4.22g/cm3 |
|
|
Mohs Hardness |
5 |
|
|
Hygroscopic Susceptibility |
Non-hygroscopic |
|
|
Thermal Expansion Coefficient |
αa = 4.43×10-6/K；αc = 11.37 ×10-6/K |
|
|
Thermal Conductivity Coefficient |
//C: 5.23 W/m/K； ⊥C: 5.10 W/m/K |
|
|
Thermal Optical Coefficient |
dna/dT = 8.5×10-6/K；dnc/dT = 3.0×10-6/K |
|
|
Crystal Class |
Positive uniaxial with no=na=nb, ne=nc |
|
|
Refractive Indices, Birefringence |
no = 1.9929, ne = 2.2154, Δn = 0.2225, ρ=
6.04° at 630nm |
|
|
Sellmeier Equation（λ in μm） |
no2 = 3.77834 + 0.069736/(λ2 - 0.04724)
- 0.0108133λ2 |
|
HGO offers NdYVO4 specifications:
|
±0.1mm |
|
|
Flatness |
|
|
Wavefront distortion |
λ/4@ 632.8nm |
|
Surface Quality |
10/5 per MIL-O-13830B |
|
Parallelism |
10″ |
|
Perpendicularity |
10′ |
|
Bevel/Chamfer |
<0.1mm@45deg. |
|
Chips |
<0.1mm |
|
Clear Aperture |
>95% |
|
Coating |
AR/HR (IAD, EB, IBS) coating upon customer’s request |
|
Damage Threshold |
750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz |
|
Quality Warranty Period |
One year under proper use |
Why Choose HGO ?
HG OPTRONICS.,INC. has the ability to grow high purity YVO4 ( Un-doped Yttrium Orthovanadate) crystals. High quality of starting material is used for crystal growth and strict quality control is applied to our YVO4 absorption ,scattering loss, bulk loss , inclusions and all the other required processing specs which assures that each crystal from HGO will comply with customer’s specification and perform well in laser system. HGO has now completed a mass-production line and have strong ability to supply such crystals with large quantity in short time.
What is more, based on our advanced diffusion bonding technology, diffusion bonding composites of NdYVO4 and YVO4 are extremely useful and very popular for higher power Nd doped vanade based laser systems. High quality of diffusion bonding crystals NdYVO4 with YVO4 endcap are available from stock and also customization.
Leave A Message
α-BBO (α-BaB2O4) is a negative uniaxial crystal which has large birefringence over a broad transparent range of 190nm to 3500nm. α-BBO is an excellent crystal especially in UV and high power applications. The physical, chemical, thermal, and optical properties of alpha-BBO crystal are similar to those of Beta-BBO. However, there is no second order nonlinear effect in alpha-BBO crystal due to the centrosymmetry in its crystal structure and thus it has no use for second order nonlinear optical processes. Instead, alpha-BBO is widely used for fabrication of polarizers, polarizing beam displacers, phase retarders, birefringent plates, and time delay compensators especially those for UV and high power lasers.
Read More
Laser Lenses are used to focus collimated light from laser beams in a variety of laser applications. Laser Lenses include a range of lens types including HGQ Lenses, Cylinder Lenses, or Laser Generator Lenses. Laser Lenseare designed to focus light in several different ways depending on the lens type, such as focusing down to a point,a line, or a ring. Many different lens types are available in a range of wavelengths.
Read More
Calcium Fluoride windows and lenses for UV and IR spectrum. Custom made CaF2 windows, CaF2 lenses and wedges according to customer's specifications. CaF2 windows up to 220mm diameter; CaF2 wedges, prisms and CaF2 mirrors; Excimer CaF2 optics, Raman grade CaF2 optics and etc.
Read More
Plano-convex circular cylindrical lenses are useful for line imaging or uni-axial magnification in a wide range of applications. These lenses may be combined with other lenses to form complex imaging systems.
Read More
HGO have advanced coating machines which can meet endusers’different application requirement. We can very high laser induced damaged threshold coating with IAD, EB and IBS coating techniques , also Cr-Au, Aluminum and silver mental coating can also be available in HGO. Customers are very welcome to contact with us for further information.
Read More
HGO is a company has skillful workers with wide processing experiences and skillful processing technique. Thus we also offer processing service such as oriented, cutting, grinding, polishing ,repolishing, coating ,recoating and diffusion bonding etc. Customers are very welcome to contact with us for further information.
Read More
Laser mirrors are fabricated with specialized coatings, which will offer high damage thresholds.
Read More
Non-Polarizing Cube Beamsplitters also called NPBS Cube is a more sophisticated type consisting of two right- angle prisms cemented together at their hypotenuse faces.The cemented face of one prism is coated. Before cementing, with a metallic or dielectric layer having the desired reflecting properties, both in the percentage of reflection and the desired color. The absorption loss to the coating is minimal and transmission and reflection could be designed to 10%, 20%, 30%, 40%, 50%, etc.
Read More
IPv6 network supported
