China Manufacture Single-Crystal Products Optical LiNbO3 Crystal Wafers

Item Number:X-P22L1T14701

Lithium Niobate (LiNbO3) is a well-developed crystalline material characterized by a high electromechanical coupling coefficient, a wide range of transparency, and excellent chemical and mechanical stability.Single side polishing/double side polishing are all available, cutting angle X/Y/Z etc.They can be used in a wide range of applications including telecommunications and sensing, surface acoustic devices, integrated optics, and novel wavelength generating and refracting elements.VY Optoelectronics Co.,Ltd. can customize various grades and sizes of LiNbO3 wafers according to your requirements.

  • Material: LT, LN etc..
  • Dimension: 76.20mm
  • Thickness: 0.50mm
  • Surface Accuracy: lambda/8
  • Surface Quality: 20/10
  • Tolerance: +/-0.01mm
  • Parallelism: 30"

    Lithium niobium crystal (LN)LiNbO3 lens is widely used in SAW filter, optical waveguide, photoelectricity modulator, frequency multiplication transducer and information storage as a functional crystal with excellent physical feature of anti high temperature and anti canker. It has stable mechanical performance, and will appear different special feature after being doped differently.

1. Saw Grade LiNbO3(LN)

 Typical Specifications 

Cutting Angle Deg. X/Y/Z/Y36/Y42/Y48/X112 etc
Diameter/size mm 3”/76.2 4”/100
Tol(±) mm 0.25 0.5
Thickness mm 0.10mm or more 0.18mm or more
Primary reference flat mm 22mm or customized 32.5mm or customized
LTV (5mmx5mm) µm < 2 < 2
TTV µm < 8 < 10
Bow µm ±20 ±25  
Warp % ≤ 30 ≤ 40
PLTV   ≥95%(5mm*5mm) ≥95%(5mm*5mm)
Orientation Flat   All available
Surface Type   Single Side Polished /Double Sides Polished
Polished side Ra nm ≤1
Back Side Criteria µm General is 0.2-0.5 or as customized
Edge Rounding mm Compliant with SEMI M1.2 Standard/refer to IEC62276

Basic materials characteristics

Crystal symmetry Trigonal, 3m
Lattice constant, A a = 5.154  c = 13.783
Density, g/cm3 7.45
Melting point , °C 1650
Curie point , °C 605
Mohs hardness 6
Thermal expansion coefficient, 10-6/ °C aa = 16  ac = 4
Thermal conductivity , mW/cm °C 46
Dielectric Constant (@ 100 KHz) ea = 54  ec = 43
Refractive indices @ 633 nm no = 2.175  ne = 2.180
Pyroelectric Coefficient -2.3 10-4 C/°C/m2

●  The possible applications

1)   Lithium niobate is used extensively in the telecoms market:
a)   in mobile telephones and optical modulators. It is the material of choice for the manufacture of surface acoustic wave devices. 
b)   in laser frequency doubling, nonlinear optics, Pockels cells, optical parametric oscillators, Q-switching devices for lasers, other acousto-optic devices, optical switches for gigahertz frequencies
c)   It is an excellent material for manufacture of optical waveguides.

2)   It's also used in the making of optical spatial low-pass (anti-aliasing) filters.

2. Optical Grade LN Wafer


● Typical Specifications

Orientation X&Z-cut ±0.2°
Diameter 50.8mm/76.2 mm/100mm ±0.3 mm
Orientation Flat(OF) 22mm ±2 mm/32mm ±2 mm Perpendicular to X ±0.2°
Second Refer.Flat(RF) Cw225°±0.5°from OF Cw315°±0.5°from OF
Thickness 250um/500um/1000um ±5um or more
Surface Quality Double sides polished; S/D:20/10
TTV ≤10um
WARP ≤50um
Curie Temperature 1142℃± 0.7℃
 Refractive Index n。=2.2878±0.0002  n。=2.2033±0.0002 prism coupler method@632.8nm 
Edge Beveling          Edge Rounding


Customization acceptable

● Basic materials characteristics

Crystal Structure  Trigonal, point group 3m
Lattice Parameters  a=5.148Å, c=13.863Å
Density  4.64 g/cm3
    Melting Point  1250 °C
 Curie Point  1142±2℃
 Mohs Hardness  5
 Dielectric Constant  e11/e0 = 85; e33/e0 = 29.5
 Thermal Conductitiy  38 W/m/°C at 25°C
 Thermal Expansion Coefficient  a1=a2 =2x10-6/°C, a3=2.2x10-6/ °C at 25°C
 Elastic Stiffness Constant  CE11 = 2.04 x 1011 N/m2, CE33 = 2.46 x 1011 N/m2


● The possible applications

1) EO Waveguide Phase Modulators
2) EO Waveguide Amplitude Modulators
3)  Integrated Waveguide Photonics
4) Wave Guide Lasers

The detailed video of LiNbO3 wafer is as follows:


Related Products

Infrared High Precision Optical Germanium Wafer for Thermal Imaging

Germanium Windows are available with three anti-reflection coating options, 3 - 5μm ...

VY Optics Lens D30 D40 D50 ZnSe Focusing Lens for CO2 Laser Machine

Zinc Selenide is a transparent yellow polycrystalline substance with a transmission range ...

Customizable High Precision Optical Components Silicon Optical Glass Spherical Lens

Spherical lenses are lenses with at least one curved surface. They converge ...

China Manufacture Optical Coated Quartz Glass Mirror Polished Coating Plane Square Mirrors

Mirror is the most commonly used optical element. They appear in small ...

Get A Quote