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Optical Grade LiNbO3 Wafers
LiNbO3 optical grade, Z-cut, 10x10x0.1mm, 2sp
- Optical grade single crystal LiNbO3
- Orientation
- Z-cut +/-0.5o
- Size
- 10 mm x 10 mm x 0.1 mm
- Polish
- two sides polished
- Surface roughness
- < 8 A ( by AFM )
- Crystal Structure
- Hexagonal a=5.148 Å, c= 13.863 Å
- Curie Temperature
- ~ 1160 oC
- Thermal expansion (x10-6/ oC)
- •a11: 15.4
•a33: 7.5
- Index of Refraction
- •ho=2.286
•he=2.203
•at 632.8 nm
- Transmission wavelength
- 0.4 ~ 2.90 m
- Nonlinear coefficient
Electro-optical Coefficient
- •d33=34.45, d31=d15=5.95, d22=13.07 (pmV-1)
•g13=8.6, g22=3.4, g33=30.8, g51=28.0, g22=6.00 (pmV-1)
- Transparency Range
Transmissivity
- •370 ~ 5000 nm
•> 68 % @ 632.8 nm
- Sellmeier Equation ( l in mm )
- •ho2 (l) = 4.9048 + 0.11768/(l2 ´ 0.04750) ´ 0.027169 l2
•he2 (l) = 4.5820 + 0.099169/(l2 ´ 0.04443) ´ 0.021950 l2
- LiNbO3 Finished Components
- Size
- Any size below 3" diameter boule
- Tolerance of size
- •Z-axis: ± 0.3 mm
•X-axis and Y-axis: ± 0.1 mm
- Chamfer
- Less than 0.5 mm at 45o
- Accuracy of orientation
- •Z-axis: < 5'
•X-axis and Y-axis: < 10'
- AR-coating
- Reflectance < 0.2% @ 1064 nm
- Wavefront distortion
- < l/4 @ 633 nm
- Extinction ratio
- > 400:1 @ 633 nm, F 6mm beam
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