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Nonlinear Crystals

  • Product Name: LiNbO3
  • Dimension Tolerance:W x H (+/- 0.1mm) x L (+0.2/-0.1mm)
  • Angle Tolerance:Δθ ≤ 0.25°, Δφ ≤ 0.25°
  • Parallelism:< 20 arc seconds
  • Perpendicularity:< 5 arc minutes
  • Chamfer:0.1mm at 45°
  • Clear Aperture:90%
  • Scratch and Dig:20/10 or better
  • Surface Flatness:λ/8 at 633nm
  • Wavefront Distortion:λ/8 at 633nm
  • Damage Threshold :100 MW/cm2?at 1064nm,?10ns,?10Hz?

Product overview

Lithium Niobate (LiNbO3) or LN Crystal is widely used as frequency doublers for wavelength over 1μm and optical parametric oscillators (OPOs) pumped at 1064 nm and quasi-phase-matched (QPM) devices. Additionally due to its large Electro-Optic (EO) and Acousto-Optic (AO) coefficients, LiNbO3 is the most commonly used material for Pockels Cell, Q-switches and phase nodulators, waveguide substrate, and surface acoustic wave (SAW) wafers, etc.

Scitlion is able to offer
Size upto 10 x 10 x 20mm
Length from 0.02mm to 20mm
Coating upon your request



Density

4.64 g/cm3

Melting Point

1253°C

Curie Temperature

1140°C

Mohs Hardness

5

Elastic Stiffness Coefficients

CE11= 2.33(×1011N/m2  )

CE33= 2.77(×1011N/m2  )

Crystal Structure

Trigonal

Lattices Constants 

a=5.148A , c=13.863A

Thermal and Electrical Properties

 

Thermal Expansion Coefficients

2.0x10-6/K  (// a-axis  at 25°C)

2.2x10-6/K  (// c-axis  at 25°C)

Thermal Conductivity

38W/m/K  at 25°C

Resistivity

2x10-6Ω·cm@200°C

Piezoelectric Strain Constant

D22=2.04(x10-11C/N)

D33=19.22(x10-11C/N)

Optical and Electro-optical Properties

 

Transparency Range

420nm to 5200nm

Optical Homogeneity

~ 5 x 10-5 /cm

Refractive indices 

ne = 2.146, no = 2.220  at 1300 nm
ne = 2.156, no = 2.232  at 1064 nm
ne = 2.203, no = 2.286  at 632.8 nm

NLO Coefficients:

d33 = 86 x d36 (KDP)
d31 =11.6 x d36 (KDP)
d22 = 5.6 x d36 (KDP)

Effective NLO Coefficients:

deff(I)=d31sinθ-d22cossin3Φ
deff(II)=d22cos2θcos3Φ

Electro-Optic Coefficients

r T33 = 32 pm/V,   rS33 = 31 pm/V,
rT31 =10 pm/V,     rS31=8.6 pm/V,
rT22 = 6.8 pm/V,   rS22= 3.4 pm/V,

Half-Wave Voltage

3.03 KV  (Electrical field // z, light ┴ z)
4.02 KV  (Electrical field // x or y, light // z)

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

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