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LiNbO3 substrate

LiNbO3 substrate

 

The main performance parameters

Growth method

Czochralski method

Crystal structure

Trigonal system

Lattice constant

a=b=5.148Å     c=13.863 Å 

Melting point

1250℃

Curie temperature

1142 ℃

Density

4.64 g/cm3

Mohs Hardness

5

Spectral transmission range

0.4-2.9um

Refractive index

No=2.286 ne=2.203 (632.8nm)

Nonlinear coefficient

D33=34.45, d31=d15=5.95, d22=13.07 (PMV-1)

Electro-optic coefficient

γ13=8.6,γ22=3.4,γ33=30.8,γ51=28.0,γ22=6.00(pmv-1) 

Spectral transmission range

370 - 5000nm  >68% (632.8nm)

Thermal expansion coefficient

A11=15.4 x 10-6/k, a33=7.5 x 10-6/k

Standard specifications:

Grade:

Optical grade LiNbO3

SAW grade LiNbO3

Orientation

X-cut, Z-cut (+/-0.2°)

Z-cut, Y-cut,

Y-cut 36° off, Y-cut 64° off, Y-cut 128° off

Primary Orientation Flat

22mm+/-2mm (3-inch)
32mm+/-2mm (4-inch)
22mm+/-2mm (3-inch)
32mm+/-2mm (4-inch)

Standard Size

φ3"(76.2mm) +/-0.3mm
φ4" (100mm) +/-0.3mm
φ6" (150mm) +/-0.3mm
10x10mm  +/-0.1mm
Or others

φ3" (76.2mm) +/-0.3mm
φ4" (100mm) +/-0.3mm
φ6" (150mm) +/-0.3mm
10x10mm  +/-0.1mm
Or others

Thickness

500μm +/-20μm
1000μm +/-20μm
350μm +/-20μm

Or Ultra thin wafer 20~60μm

500μm +/-20μm
1000μm +/-20μm
350μm +/-20μm

Or Ultra thin wafer 20~60μm

Polishing

 Single or Both side polished

 Surface Finish: 20/10 or 10/5

Single or Both side polished

Surface Finish: 20/10 or 10/5

TTV

≤10um

≤10um

Curie temperature

1142℃ +/-0.7℃

1142℃ +/-3℃

Edge chamfer

Edge rounding

Edge rounding

 

LiNbO3 is a nonlinear optical grade crystal, it widely used in parametric oscillators, frequency doubling, acousto-optic devices, optical modulators. MgO-doped LiNbO3 can effectively increase the damage threshold of the LiNbO3 crystal.
 
Lithium Niobate(LiNbO3) crystals are widely used in optical communication, information processing, integrated optics, image storage, harmonic generation, frequency doubling devices, parametric oscillations, frequency multiplication of 1064nm lasers and quadruple frequency phase matching device etc.

 

 
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