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Optical 5200nm Lithium Niobate LiNbO3 Wafer For Frequency Doublers

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Optical 5200nm Lithium Niobate LiNbO3 Wafer For Frequency Doublers

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Brand Name : Crystro

Model Number : CR210219-1

Certification : SGS/COC

Place of Origin : China

MOQ : 1pc

Price : USD 20~200/pc

Payment Terms : T/T, Western Union, MoneyGram, Paypal

Supply Ability : 2000pcs per month

Delivery Time : 3-5 weeks

Packaging Details : Transparent clean box

Material : Lithium Niobate (LiNbO3) Crystal Substrate Wafer

Density : 4.64g/cm3

Transparency Range : 420-5200nm

Absorption Coefficient : ~0.1%/cm @1064nm

Refractive Indices : ne=2.156, no=2.232@1064nm

Dimension Tolerance : ±0.05mm

Wedge Angle Tolerance : ±0.1°

Packing : individual container for each substrate, packed in bag filled with inert gas.

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Lithium Niobate (LiNbO3) Crystal Substrate Wafer

LiNbO3 (Lithium niobate, LN) crystal is a negative uniaxial crystal and one of the most thoroughly characterized optical materials.

With its large electro-optic coefficients, wide optical transparency window, and availability of high optical quality crystals, LN (lithium niobate) crystal is often the material of choice for optical modulation and Q-switch at near-infrared and infrared wavelengths. For electro-optic modulators (EOM) the crystal can be z-cut with zero residual birefringence along the direction of light propagation or x-cut with non-zero residual birefringence and the maximized effective electro-optic coefficient. For Q-switch the crystal is typically z-cut with zero residual birefringence and an electric field is applied transverse to the direction of light propagation. The piezoelectric ringing in LN is a disadvantage at high repetition frequency, but can be overcome to some extent with proper piezoelectrically damped designs.

Basic Properties of LiNbO3

Crystal Sturucture Trigonal, Space group R3c, Point group 3m
Melting Point 1253℃
Mohs Hardness 5
Density 4.64g/cm3
Deliquescence None
Optical Homogeneity ~5x10-5/cm
Transparency Range 420-5200nm
Absorption Coefficient ~0.1%/cm @1064nm
Refractive Indices at 1064nm ne=2.146, no=2.220@1300nm ne=2.156, no=2.232@1064nm ne=2.203, no=2.286@632.8nm
Thermal Expansion Coefficients (at 25℃ ) //a,2.0x10-6/K //a,2.2x10-6/K
Thermal Conductivity Coefficients 38 W/m/K at 25℃
Thermal Optical Coefficients dno/dT=-0.874 x 10-6/K at 1.4μm dne/dT=39.073 x 10-6/K at 1.4μm
The Sellmeier Equations (λ in μm) no2=4.9048+0.11768/(λ2-0.04750)-0.027169λ2 ne2=4.5820+0.099169/(λ2-0.04443)-0.02195λ2

Typical Specifications:

Specifications Boule Wafer
Diameter Φ3'' Φ4'' Φ3'' Φ4''
Length or Thickness (mm) ≤100 ≤50 0.35-0.5
Orientation 127.86°Y,64°Y,135°Y,X,Y,Z, and other cut
Ref.Flat Orientation X,Y
Ref.Flat Length 22±2mm 32±2mm 22±2mm 32±2mm
Front Side polishing / Mirror polished 5-15 Å
Back Side Lapping / 0.3-1.0μm
Flatness (μm) / ≤15
Bow (μm) / ≤25

Crystro can offer other size and specification of wafers upon request.

Applications:
LiNbO3 Crystal is widely used as frequency doublers for wavelength > 1μm and optical parametric oscillators (OPO) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices. Due to its large Electro-Optic (E-O) and Acousto-Optic (A-O) coefficients, LiNbO3 crystal is the most popular material for Pockel Cells, Q-switches and phase modulators, waveguide substrate and surface acoustic wave (SAW) wafers, etc.

Crystro provides:

  • LiNbO3 wedges used for fiber optical isolators and circulators.

  • Reliable delivery

  • Strict quality control

  • Technical support

  • Very competitive prices

Optical 5200nm Lithium Niobate LiNbO3 Wafer For Frequency Doublers


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