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Low Cost 5200nm Laser Crystals Trigonal Crystal Structure LiNbO3 Crystal

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Low Cost 5200nm Laser Crystals Trigonal Crystal Structure LiNbO3 Crystal

Country/Region	china
City & Province	wuhan
Categories	Other Non-Metallic Minerals & Products

Product Details

Birefringent Crystal LiNbO3

Overview:

Lithium Niobate (LiNbO3) is widely used in fiber communication devices as Birefringent crystal. It has good mechanical and physical properties and is ideal for optical polarizing components due to its wide transparency range and low cost. It is an excellent material in fiber communication applications such as isolators, circulators, beam displacers, and other polarizing optics.

General Specifications Of LiNbO3:

Dimension	Dia:3-4mm, L:1-100mm(other size is available)
Dimension tolerance	Z-axis:+/-0.2mm, X-axis:+/-0.1mm, Y-axis:+/-0.1mm
Chamfer	<0.5×45°
Accuracy of orientation	Z-axis:<+/-5’, X-axis and Y-axis:<+/-10’
Parallelism	<20 arc seconds
Scratch/Dig	10/5@MIL-O-13830A
Flatness	λ/8@633nm
Wavefront distortion	λ/4@633nm
AR coating	AR@1064nm R<0.2%

Physical and Optical Properties of LiNbO3:

Crystal Structure	Trigonal, space group R3c
Cell Parameters	a = 0.515Å, c = 13.863Å, Z = 6Å
Melting Point	1255±5^oC
Curie Point	1140±5^oC
Mohs Hardness	5
Density	4.64 g/cm³
Absorption Coefficient	~ 0.1%/cm@1064nm
Solubility	insoluble in H₂O
Relative Dielectric Constant	e^T₁₁/e₀: 85 e^T₃₃/e₀: 29.5
Thermal Expansion Coefficients(@25^oC)	\|\|a, 2.0 x 10^-6/K \|\|c, 2.2 x 10^-6/K
Thermal Conductivity	38 W /m /K @ 25^oC
Transparency Range	420-5200 nm
Optical Homogeneity	~ 5 x 10^-5 /cm
Sellmeier Equations(λ in um)	n_o²(λ) = 4.9048+0.11768/(λ² - 0.04750) - 0.027169 λ² n_e²(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	g^T₃₃ = 32 pm/V, g^S₃₃ = 31 pm/V g^T₃₁ = 10 pm/V, g^S₃₁ = 8.6 pm/V g^T₂₂ = 6.8 pm/V, g^S₂₂= 3.4 pm/V
Half-Wave Voltage, DC	Electrical field \|\|z, light ^ z 3.03KV Electrical field \|\|x or y, light \|\| z 4.02 KV
Efficiency NLO Coefficients	d_eff=5.7pm/V or~14.6xd₃₆(KDP) for frequency doubling 1300nm; d_eff=5.3pm/V or~13.6xd₃₆(KDP) for OPO pumped at 1300nm; d_eff=17.6pm/V or~45xd₃₆(KDP) for quasi-phase-matched structure;
Damage Threshold	200 MW/cm²