Lithium niobate crystal factory
China wholesale Lithium niobate crystal factory
China Lithium niobate crystal factory
China Lithium niobate crystal company

LiNbO3

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 threshold of the crystal.

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 threshold 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 StructureTrigonal
Lattice constanta=0.515Å, c=13.863Å, Z=6Å
Melting Point1250±5℃
Curie Point1140±5℃
Mohs Hardness5
Density4.64 g/cm3
DeliquescenceNo
Dielectric Constantε11/ε0=85; ε33/ε0=29.5
Thermal Expansion Coefficienta1=a2=2×10-6/℃, a3=2.2×10-6/℃ at 25℃
Thermal Conductivity38 W /m /K @ 25℃
Transmission Range370-5000nm
Piezoelectric Constantd22=2.04×10-11C/N,d33=0.6×10-11C/N,d15=7×10-11C/N,d31=-0.1×10-11C/N
E-O CoefficientgT33=32pm/V, gS33=31pm/V;gT31=10pm/V, gS31=8.6pm/V;gT22=6.8pm/V, gS22=3.4pm/V
Refractive Indicesno=2.2827 ± 0.0003 ne=2.1928± 0.0003


Technical Parameter

Crystro Offers:

Size4", 6" Boule or wafer, Acoustic or Optical grade
DopingNo Doping or With Mg
Boule Length≥50mm
Wafer Thickness0.25,0.35,0.50(mm) or upon request
OrientationY42°/Y36°/Y128°/X/Y/Z or Upon Request
Surface ProcessSingle/Double Sides Polishing
TTV< 10µm
BOW± (25µm ~40µm)
Warp≤35µm
Flat Width32.0±2.0(mm) or Upon Request
RoughnessRa≤10Å
Chamfer0.1mm@45°or round edge

Applications