Lbo Lithium Triborate Crystal Lib3o5 Frequency Doubling

Place of Origin China
Brand Name ZCQ
Certification RoHS
Model Number Customized
Minimum Order Quantity Negotiated
Packaging Details Safe packaging
Delivery Time 3-4 weeks
Payment Terms T/T
Supply Ability 1000 pieces per month

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Product Details
Chemical Formula LiB3O5 Crystal Structure Orthorhombic, Mm2
Cell Parameters A = 8.4473, B = 7.3788Å, C = 5.1395Å, Z = 2 Melting Point 834°C
Optical Homogeneity Dn ~ 10-6/cm Mohs Hardness 6
Density 2.47g/cm3 Specific Heat 1.91J/cm3xK
Hygroscopic Susceptibility Low Thermal Expansion Coefficients A, 4 X 10-6/K; C, 36 X 10-6/K
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frequency doubling lithium triborate crystal


lib3o5 lithium triborate crystal


lib3o5 lbo crystal

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Product Description


LBO Lithium Triborate Crystal


LBO crystal is an excellent frequency doubling crystal, which is a widely used frequency doubling device at present. Its internal optical uniformity is good, the transmission band is relatively wide, and it has high matching efficiency and laser damage threshold.



1. Double frequency

(1) Nd: YAG lasers for medical and industrial purposes;

(2) High power Nd: YAG and Nd: YLF lasers for scientific research and military purposes

(3) Pumping of Nd: YVO4, Nd: YAG, and Nd: YLF lasers

(4) Ruby, titanium sapphire, and Cr: LiSAF laser;

2. Triple frequency

(1) Nd: YAG and Nd: YLF lasers

(2) Optical parametric amplifier (OPA) and optical parametric oscillator (OPO)

(3) Second and third harmonic generation of high-power 1340nm Nd: YAP laser


Main properties:

Chemical Formula LiB3O5
Crystal Structure Orthorhombic, mm2
Cell Parameters a = 8.4473, b = 7.3788Å, c = 5.1395Å, Z = 2
Melting point 834°C
Optical homogeneity dn ~ 10-6/cm
Mohs hardness 6
Density 2.47g/cm3
Absorption coefficient < 0.1%/cm (at 1064nm and 532nm)
Specific heat 1.91J/cm3xK
Hygroscopic susceptibility low
Thermal expansion coefficients a, 4 x 10-6/K; c, 36 x 10-6/K
Thermal conductivity ^ c, 1.2 W/m/K; //c, 1.6 W/m/K


Linear optical characteristics

Transparency range 1 60-2600nm
Refractive indices:
at 1064nm
at 532nm
at 355nm
nx = 1.5656, ny = 1.5905, nz = 1.6055
ne = 1.5785, no = 1.6065, nz = 1.6212
ne = 1.5971, no = 1.6275, nz = 1.6430
Therm-optic coefficients dno/dT = -9.3 x 10-6/°C
dne/dT = -16.6 x 10-6/°C
Sellmeier Equations (l in mm)
no2 (l) = 2.7359 – 0.01354l2+ 0.01878/(l2-0.01822)
ne2(l) = 2.3753 – 0.01516l2+ 0.01224/(l2-0.01667)


Non-linear optical characteristics

Phase-matchable output wavelength 554 – 30%0nm (type I), 790 – 2150nm (type II)
NLO coefficients d33 = 0.06; d32 = 1.2; d22 = 1.1
Walk-off Angles(@ 1064nm) 0.4° (Type I SHG), 0.3° (Type II SHG)
Acceptance Angles(@1064nm) for SHG Type I 9.6(mrad-cm) CPM at 25°C 248(mrad-cm) NCPM at 150°C
Electro-optic coefficients g 11 = 2.7 pm/V, g 22, g31 < 0.1g11
Conversion Efficiency >90% (1064 -> 532nm) Type I SHG
Damage threshold
at 1064nm
at 532nm at 355nm
45 GW/cm2 (1 ns); 10 GW/cm2 (1.3 ns)
26 GW/cm2 (1 ns); 7 GW/cm2 (250 ps) 22 GW/cm2