MgO:LiNbO3(Electro-optic Crystal)

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MgO: LiNbO3 electro-optic crystals are also known as magnesium-doped lithium niobate crystals. They have excellent overall properties. MgO-doped LN (typical doping: 5%) was developed to reduce the optical folding effect of the intrinsic material and thus can be used for higher energy applications.

MgO: LiNbO3 has special advantages for NCPM SHG, hybrid SFG, and optical parametric oscillators of Nd: Laser and thus has applications in OPO, OPA, quasi-phase-matching multipliers, and integrated waveguides.

MgO: LiNbO3 electro-optic crystals have unique advantages over LLiNbO3 crystals for NCPM multiplication, mixing, and optical parametric oscillation in Nd-doped lasers. MgO: LiNbO3 electro-optic crystals can achieve multiplication efficiencies over 65% for pulsed Nd: YAG lasers and 45% for continuous Nd: YAG lasers. Crystals are widely used in optical parametric oscillation (OPO), amplification (OPA), quasi-phase matching, and integrated optical waveguides.

Features of MgO: LiNbO3 Electro-optic Crystals:

  • High damage threshold
  • Wide range of transparency
  • Excellent EO and NLO performance
  • Good mechanical and chemical properties
  • Non-critical phase matching at room temperature

Crystal Specifications

crystal materialMgO:LiNbO3
SizeCustomization
Dimensional Tolerance
±0.1mm
Length Tolerance
±0.2mm
Surface Finish
20/10 S/D
Parallelism
<20"
Flatness
<λ/10 @633nm
Perpendicularity
<5'
Chamfer
0.2mm @45°
Orientation Tolerance
<10'
Wavefront Distortion
<λ/4 @633nm

Crystal Properties

Melting Point
1255±5℃
Curie Point1140±5℃
Mohs Hardness
5
Density
4.64g/cm3
Absorption Coefficient
～0.1%/cm@1064nm
SolubilityInsoluble in Water
Relative Dielectric ConstanteT11/e0:85
eT33/e0:29.5
Thermal Conductivity
38W/m/k@25℃
Transparency Range420-5000nm
Refractive Index
ne=2.146,no=2.220@1300nm
ne=2.156,no=2.322@1064nm
ne=2.203,no=2.286@632.8nm
Optical Uniformity～5 ×10-5/cm
Sellmeier Equationno2(λ)=4.9048+0.11768/(λ2-0.04750)-0.027169λ2
ne2(λ)=4.5820+0.099169/(λ2-0.04443)-0.021950λ2
Electro-optic Coefficient
YT33=32pm/V,YS33=31pm/V
YT31=10pm/V,YS31=8.6pm/V
YT22=6.8pm/V,YS22=3.4pm/V
Half-wave Voltage（DC）3.03KV
Damage Threshold
200MW/cm2(10ns）

Spectrum

MgOLiNbO3-transmission-spectrum-CRYLINKMgOLiNbO3 absorption spectrum-CRYLINK
Transmission SpectrumAbsorption Spectrum

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