LiNbO3
Lithium Niobate is an inorganic material, chemical formula LiNbO3, is a negative crystal, ferro-electric crystal, polarization of lithium niobate crystal with piezoelectric, ferro-electric, photoelectric, nonlinear optical, thermo-electric materials, and has optical refractive effect.
File Download- Product Description
-
Lithium niobate crystal is a good piezoelectric conversion material, ferro-electric materials, electric and optical materials. As electro-optical materials in optical communication, it is widely used in parametric oscillator, double frequency, acoustic and optical devices, and optical modulator. The doping of Mgo can effectively improve the damage resistance valve value of the crystal.
Main Advantages:
Very small chirp effect
High modulation bandwidth
High extinction ratio
Stable chemical and physical properties
Typical applications:
Acoustic surface wave filter
Separator
Narrow band filter
Sensors
Photon tunable filter
Acoustic and optical devices
Optical gyroscope
Optical waveguide
Optical switches
Optical modulation direction coupler
Optical communication modulator
Interferometer converter
High-speed long-distance communication
- Material Properties
-
Crystal Structure
Trigonal
Lattice constant
a=0.515Å, c=13.863Å, Z=6Å
Melting Point
1250±5℃
Curie Point
1140±5℃
Mohs Hardness
5
Density
4.64 g/cm3
Deliquescence
No
Dielectric Constant
ε11/ε0=85; ε33/ε0=29.5
Thermal Expansion Coefficient
a1=a2=2×10-6/℃, a3=2.2×10-6/℃ at 25℃
Thermal Conductivity
38 W /m /K @ 25℃
Transmission Range
370-5000nm
Piezoelectric Constant
d22=2.04×10-11C/N,d33=0.6×10-11C/N,d15=7×10-11C/N，d31=-0.1×10-11C/N
E-O Coefficient
gT33=32pm/V, gS33=31pm/V；gT31=10pm/V, gS31=8.6pm/V；gT22=6.8pm/V, gS22=3.4pm/V
Refractive Indices
no=2.2827 ± 0.0003 ne=2.1928± 0.0003
- Technical Parameter
-
Crystro Offers:
Size
4", 6" Boule or wafer, Acoustic or Optical grade
Doping
No Doping or With Mg
Boule Length
≥50mm
Wafer Thickness
0.25，0.35，0.50(mm) or upon request
Orientation
Y42°/Y36°/Y128°/X/Y/Z or Upon Request
Surface Process
Single/Double Sides Polishing
TTV
< 10µm
BOW
± (25µm ~40µm)
Warp
≤35µm
Flat Width
32.0±2.0（mm) or Upon Request
Roughness
Ra≤10Å
Chamfer
0.1mm@45°or round edge
Note: Above parameters for reference only, please contact our sales Rep. for your specific requirement.