Linbo3 And Mgo-linbo3 Crysta

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Product Features

LiNbO3(Lithium Niobate) crystal has high mechanical and chemical stability, good physical properties, wide transparency range as well as high optical homogeneity. LiNbO3 crystal is widely used as frequency doublers for wavelength > 1mm and optical parametric oscillators (OPOs) pumped at 1064 nm.

Due to its large electro-optic and acousto-optic coefficiens, LiNbO3 crystal is the most commonly used material for Pockels Cells, Q-switches and phase modulators, aveguide substrate, and surface acoustic wave(SAW) wafers, etc. High quality and large size LiNbO3 crystals, waveguide substrate and SAW wafers are available.

MgO:LiNbO3 (Magnesium Oxide Doped Lithium Niobate) crystal has similar effective nonlinear coefficients to pure LiNbO3 and exhibits higher optical damage threshold.

Product parameters

Specifications:
Angle tolerance:	Δθ< ± 0.5°; Δφ< ±0.5°
Dimensional Tolerance:	(W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/-0.1mm)
Flatness:	<λ/8 at 633nm
Surface Quality:	20/10 Scracth/Dig
Parallelism:	< 20 arc seconds
Perpendicularity:	< 5 arc minutes
Wavefront Distortion:	<λ/8 at 633nm
Clear Aperture:	Central 95%
Chamfer:	0.15x45°
Coating:	* AR @ wavelegth specified by customer

Properties:
Crystal Structure	Trigonal, space group R3c
Cell Parameters	a = 0.515, c = 13.863, Z = 6
Melting Point	1255 +/-5℃
Curie Point	1140 +/-5℃
Mohs Hardness	5
Density	4.64 g/cm3
Absorption Coefficient	~ 0.1%/cm @ 1064 nm
Solubility:	insoluble in H2O
Relative Dielectric Constant	eT11/e0: 85
Relative Dielectric Constant	eT33/e0: 29.5
Thermal Expansion Coefficients at 25℃	\|\|a, 2.0 x 10-6/K @ 25℃
Thermal Expansion Coefficients at 25℃	\|\|c, 2.2 x 10-6/K @ 25℃
Thermal Conductivity	38 W /m /K @ 25℃

Transparency Range	420 - 5200 nm
Refractive Indices	ne = 2.146, no = 2.220 @ 1300 nm
	ne = 2.156, no = 2.322 @ 1064 nm
	ne = 2.203, no = 2.286 @ 632.8 m
Optical Homogeneity	~ 5 x 10-5 /cm
Sellmeier Equations( l in mm)	no2(λ) = 4.9048+0.11768/(λ2 - 0.04750) - 0.027169 λ2
Sellmeier Equations( l in mm)	ne2(λ) = 4.5820+0.099169/(λ2- 0.04443) - 0.021950 λ2

NLO Coefficients	d33 = 34.4 pm/V
	d31 = d15 = 5.95 pm/V
	d22 = 3.07 pm/V
Electro-Optic Coefficients	γT33 = 32 pm/V, γS33 = 31 pm/V
	γT31 = 10 pm/V, γS31 = 8.6 pm/V
	γT22 = 6.8 pm/V, γS22 = 3.4 pm/V,
Half-Wave Voltage, DC	3.03 KV 4.02 KV
Electrical field \|\|z, light ^ z
Electrical field \|\|x or y, light \|\| z
Damage Threshold	200 MW/cm2 (10 ns)
Efficiency NLO Coefficients	deff=5.7pm/V or~14.6xd36(KDP) for frequency doubling 1300 nm;
	deff=5.3pm/V or~13.6xd36(KDP) for OPO pumped at 1300nm;
	deff=17.6pm/V or~45xd36(KDP) for quasi-phase-matched structure;

MgO:LiNbO3
Specification:
Dimensional Tolerance:	(W ± 0.1mm) x (H ± 0.1mm) x (L + 0.2mm/-0.1mm)
Flatness:	<λ/8 at 633nm
Surface Quality:	20/10 Scracth/Dig
Parallelism:	< 20 arc seconds
Perpendicularity:	< 5 arc minutes
Wavefront Distortion:	<λ/8 at 633nm
Clear Aperture:	Central 95%
Chamfer:	0.15x45°
Coating:	* AR @ wavelegth specified by customer
Sellmeier Equations: no2(l) = 4.8762 + 0.11554/(l2 - 0.04674) - 0.033119 x l2/(l in mm) no2(l) = 4.5469 + 0.094779/(l2 - 0.044394) - 0.026721 x l2

LiNbO3 and MgO-LiNbO3 Crysta