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Undoped YVO 4 crystal is widely used in many beam displace online_orderings because of its large birefringence. It also has good physical and favorable mechnical properties than thers birefringent crystals, which make YVO 4 well suited for compact fiber optical components, such as isolators, circulators and interleaver etc.
 Physical and Optical Properties: |
Properties |
Values |
| Transparency Range |
400~5000nm |
| Crystal Symmetry |
Zircon tetragonal, space group D4h |
| Crystal Cell |
A=b=7.12 °, c=6.29 ° |
| Density |
4.22 g/cm 2 |
| Hygroscopic Susceptibility |
Non-hygroscopic |
| Mohs Hardness |
5 glass like |
| Thermal Optical Coefficient |
Dn a /dT=8.5x10 -6 /K; dn c /dT=3.0x10 -6 /K |
| Thermal Conductivity Coefficient |
||C: 5.23 w/m/k; ⊥C:5.10w/m/k |
| Crystal Class |
Positive uniaxial with no=na=nb, ne=nc |
| Refractive Indices, Birefringence( D n=ne-no) and Walk-Off Angle at 45 deg(ρ) |
No=1.9929, ne=2.2154, D n=0.2225, ρ=6.04°, at 630nm
No=1.9500, ne=2.1554, D n=0.2054, ρ=5.72°, at 1300nm
No=1.9447, ne=2.1486, D n=0.2039, ρ=5.69°, at 1550nm |
| Sellmeier Equation ( l in mm) |
n o 2 =3.77834+0.069736/(l2 -0.04724)-0.0108133 l 2 n e 2 =24.5905+0.110534/(l2 -0.04813)-0.0122676 l2 |
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| Our Manufacture Technical Capabilities: |
Properties |
Values |
| Diameter : |
max. 25mm |
| Length: |
max. 30mm |
| Surface Quality: |
better than 20/10 scratch/dig Per MIL-0-13830A |
| Beam Deviation: |
<3 arc min |
| Optical Axis Orientation: |
+/-0.2° |
| Flatness: |
< l /4 @633nm |
| Transimission Wavfront Distortion: |
<l /2 @633nm |
| Coating: |
upon customer's Specification |
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Standard YVO4 Wedge:
Material |
X(mm) |
Y(mm) |
Z(mm) |
θ |
φ |
AR@(nm) |
Product Number |
YVO4 |
0.5 |
1.4 |
1.4 |
5° |
22.5° |
1550 |
UQT-OCYOW0101 |
YVO4 |
0.5 |
1.4 |
1.4 |
9° |
22.5° |
1550 |
UQT-OCYOW0102 |
YVO4 |
0.5 |
1.4 |
1.4 |
5° |
22.5° |
1310 |
UQT-OCYOW0103 |
YVO4 |
0.5 |
1.4 |
1.4 |
9° |
22.5° |
1310 |
UQT-OCYOW0104 |
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Standard YVO4 beam displacer: |
Material |
Dimension(mm) |
θ |
φ |
d(mm) |
AR@(nm) |
Product Number |
YVO4 |
2.6 x 2.6 x 7 |
45° |
0° |
0.70 |
1550 |
UQT-OCYOB0201 |
YVO4 |
2.6 x 2.6 x 10 |
45° |
0° |
1.00 |
1550 |
UQT-OCYOB0202 |
YVO4 |
2.6 x 2.6 x 12 |
45° |
0° |
1.20 |
1550 |
UQT-OCYOB0203 |
YVO4 |
2.6 x 2.6 x 15 |
45° |
0° |
1.50 |
1550 |
UQT-OCYOB0204 |
YVO4 |
2.6 x 2.6 x 7 |
45° |
45° |
0.70 |
1550 |
UQT-OCYOB0205 |
YVO4 |
2.6 x 2.6 x 10 |
45° |
45° |
1.00 |
1550 |
UQT-OCYOB0206 |
YVO4 |
2.6 x 2.6 x 12 |
45° |
45° |
1.20 |
1550 |
UQT-OCYOB0207 |
YVO4 |
2.6 x 2.6 x 15 |
45° |
45° |
1.50 |
1550 |
UQT-OCYOB0208 |
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| Please Contact ultiQuest for other dimensions in prototype and production quantities. |
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| NOTES! |
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Be sure to wear laser safety goggles when checking optical path and adjusting optical axis. |
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