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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