Products
Home /CRYSTALS /

NLO Crystals

/LBO Nonlinear Optical crystal Lithium Triborate Crystal

LBO Nonlinear Optical crystal Lithium Triborate Crystal

HGO grows LBO Nonlinear crystals using flux technology. LBO crystals is an excellent nonlinear crystal.For frequency doubling(SHG),tripling(THG) of Nd:YAG,Nd:YLF,Nd:YVO4 lasers, it is one of the most useful nonlinear optical materials in ultraviolet and visible laser applications.

  • Product Origin:

    China
  • Shipping Port:

    Fuzhou, China
  • Lead Time:

    3-4weeks
Share To : f t y b l ins
  • Product Detail

Descriptions:



HGO grows Lithium Triborate (LiB3O5, LBO) Nonlinear crystals using flux technology. LBO a broad transparency range, wide acceptance angle, small walk-off angle, and the highest damage threshold among common nonlinear crystals.

Most common applications include high-power near-infrared wavelength second harmonic generation, sum-frequency generation to produce visible, ultraviolet laser light, and visible, near-infrared widely tuned optical parametric oscillators. HGO are capable of providing uncoated super-polished LBO crystals desired, e.g. for high-power UV generation via sum-frequency generation of 1064 nm and 532 nm.



Main applications:

1) SHG, THG

2) OPA and OPO


Advantages:

1) Broad transparency range from 160nm to 2600nm;

2) High optical homogeneity (δn≈10-6/cm) and free of inclusion;

3) Large effective SHG coefficient;

4) Wide acceptance angle and small walk-off;

5) Type I and type II non-critical phase matching (NCPM) in a wide wavelength range;

6) High damage threshold(18.9 GW/cm 2 for a 1.3ns laser at 1053nm)

7) Spectral NCPM near 1300nm


Optical and Nonlinear properties of LBO crystal

Transparency Range

160-2600nm

SHG Phase Matchable Range

551-2600nm (Type I) 790-2150nm (Type II)

Therm-optic Coefficient (/, λ in μm)

dnx/dT=-9.3x10-6
dny/dT=-13.6x10-6
dnz/dT=(-6.3-2.1λ)x10-6

Absorption Coefficients

<0.1%/cm at 1064nm <0.3%/cm at 532nm

Angle Acceptance

6.54mrad·cm (φ, Type I,1064 SHG)
15.27mrad·cm (θ, Type II,1064 SHG)

Temperature Acceptance

4.7·cm (Type I, 1064 SHG)
7.5
·cm (Type II, 1064 SHG)

Spectral Acceptance

1.0nm·cm (Type I, 1064 SHG)
1.3nm·cm (Type II, 1064 SHG)

Walk-off Angle

0.60° (Type I 1064 SHG)
0.12° (Type II 1064 SHG)

NLO Coefficients

deff(I)=d32cosΦ (Type I in XY plane)
deff(I)=d31cos2θ+d32sin2
θ (Type I in XZ plane)
deff(II)=d31cos
θ (Type II in YZ plane)
deff(II)=d31cos2
θ+d32sin2θ (Type II in XZ plane)

Non-vanished NLO susceptibilities

d31=1.05± 0.09 pm/V
d32= -0.98
± 0.09 pm/V
d33=0.05
± 0.006 pm/V

Sellmeier Equations (λ in μm)

nx2=2.454140+0.011249/(λ2-0.011350)-0.014591λ2-6.60×10-5λ4
ny2=2.539070+0.012711/(
λ2-0.012523)-0.018540λ2+2.00×10-4λ4
nz2=2.586179+0.013099/(
λ2-0.011893)-0.017968λ2-2.26×10-4λ4


Physical properties of LBO crystal

Crystal Structure

Orthorhombic, Space group Pna21, Point group mm2

Lattice Parameter

a=8.4473Å,b=7.3788Å,c=5.1395Å,Z=2

Melting Point

About 834

Mohs Hardness

6

Density

2.47g/cm3

Refractive indices

nX= 1,5656; nY= 1,5905; nZ= 1,6055 @1064 nm

Thermal Conductivity

3.5W/m/K

Thermal Expansion Coefficients

αx=10.8x10-5/K, αy=-8.8x10-5/K,αz=3.4x10-5/K


HGO offers LBO specifications:

Tolerance of cutting angle

△θ≤±0.25°,△φ≤±0.25°

Tolerance of dimension

Dimension+0/-0.1 mmL±0.1mm

Flatness

λ/10 @ 632.8nm

Wavefront distortion

λ/8@ 632.8nm

Surface quality

10/5 per MIL-O-13830A

Parallelism

20

Perpendicularity

5

Clear Aperture:

> 90%

Chamfer:

< 0.1 mm @ 45°

Size

Upon customer request

Coating

AR/PR coating upon customer’s request

Damage Threshold

750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz

Quality Warranty Period

One year under proper use


Why Choose HGO ?

HGO grows LBO crystals( Lithium Triborate Crystal) in house using Flux growth technology. High quality of starting material is used for crystal growth and strict quality control is applied to our LBO’s absorption ,scattering loss, bulk loss ,wavefront distortion ,inclusions and all the other required processing specs which assures that each crystal from HGO will comply with will comply with customer’s specification and perform well in laser system.

HGO can supply large size of LBO up to 30mm*30mm*30mm and max length up to 60mm. We have over 13 years crystals growth experiences and HGO’s LBO has been well recognized as high qulity and low price by our customers from all over the world.


Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
Related Products
BBO Nonlinear crystal
BBO Nonlinear crystal Beta-Barium Borate Crystal

HGO grows BBO Nonlinear crystals using flux technology. BBO crystal transparency ranges from 188 nm to 5,2 µm, which includes reasonable transparency from 3-5,2 µm for few tens µm thick crystals, while their phase-matchable range spans almost over the entire transparency range. Combined with other magnificent properties of BBO, it is favorable for numerous nonlinear parametric applications. It is worth to mention that BBO crystals have the highest nonlinearity in the UV range out of all common nonlinear crystals.

Read More
KTP  crystal
KTP Nonlinear crystal Potassium Titanyl Phosphate

Potassium Titanyl Phosphate (KTiOPO4 or KTP) is widely used in both commercial and military lasers including laboratory and medical systems, range-finders, lidar, optical communication and industrial systems.

Read More
LiNbO3 LN nonlinear crystal
LiNbO3 crystal Lithium niobate

LiNbO3 is widely used as electro-optic modulators and Q-switches for Nd:YAG, Nd:YLF and Ti:Sapphire lasers as well as modulators for fiber optics.

Read More
KDP & DKDP/KD*P Crystal
KDP & DKDP Crystal Potassium Dihydrogen Phosphate and Potassium Dideuterium Phosphate

KDP Potassium Dihydrogen Phosphate and KD*P or DKDP Potassium Dideuterium Phosphate are among the most widely-used commercial NLO materials, characterized by good UV transmission, high damage threshold, and high birefringence, though their NLO coefficients are relatively low. They are usually used for doubling, tripling and quadrupling of a Nd:YAG laser under the room temperature. In addition, they are also excellent electro-optic crystals with high electro-optic coefficients, widely used as electro-optical modulators, such as Q-switches, Pockels Cells, etc.

Read More
KDP & DKDP/KD*P Crystal
KDP & DKDP Crystal Potassium Dihydrogen Phosphate and Potassium Dideuterium Phosphate

KDP Potassium Dihydrogen Phosphate and KD*P or DKDP Potassium Dideuterium Phosphate are among the most widely-used commercial NLO materials, characterized by good UV transmission, high damage threshold, and high birefringence, though their NLO coefficients are relatively low. They are usually used for doubling, tripling and quadrupling of a Nd:YAG laser under the room temperature. In addition, they are also excellent electro-optic crystals with high electro-optic coefficients, widely used as electro-optical modulators, such as Q-switches, Pockels Cells, etc.

Read More
Cr4+:YAG passive q-switch
Cr4+:YAG crystals Chromium Doped Yttrium AIuminum Garnet

Cr4+:YAG (Y3Al5O12) crystal is ideal for passive Q-switch operation of Nd:YAG and other Nd3+ or Yb3+ doped laser crystals in the wavelength range of 900 nm to 1200 nm. Passive Q-switches or saturable absorbers provide high power laser pulses without electro-optic Q-switches, thereby reducing the package size and eliminating a high voltage power supply. A remarkable feature of Cr4+:YAG is the high damage threshold of >10 J/cm2@1064 nm, 10 ns. Its absorption band extends from 900 nm to 1200 nm and peaks around 1060 nm with a very large absorption cross-section.

Read More
NdYAG Crystal for solid-state laser
Nd:YAG crystals Neodymium Doped Yttrium Aluminum Garnet

Nd:YAG is the earliest and most famous laser host crystal. Since it combines great advantages in many basic properties,Nd:YAG is the ubiquitous presence for near-infrared solid-state lasers and their frequency-doubler, tripler, and higher order multiplier. It is widely used in industrial, medical, military and scientific fields.. Nd:YAG crystals are wildly used in all types of solid-state laser systems-frequency-doubled continuous wave, high-energy Q-switched, and so forth.Its good fluorescent lifetime thermal conductivity and physical strengths makes it suitable for high power lamp pumped laser.

Read More
HoYLF laser crystal
Ho:YLF crystal Holmium-doped Yttrium Lithium Fluoride

HGO grows Ho:YLF laser crystals using Czochralski technology. Ho:YLF is a very attractive laser material, because the lifetime of the upper laser level is much longer ( ~ 14 ms) than in Ho:YAG and the emission cross sections are higher. Additionally the thermal lens in Ho:YLF is much weaker, which helps to generate diffraction limited beams even under intense end-pumping. The primary advantage of directly pumping the Ho 5I7 is that it does not have to depend on energy transfer, which lends itself to various radiative and non-radiative losses. Up-conversion losses that have deleterious effect in high-energy Q-switched lasers are eliminated.

Read More
Leave A Message
Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

Home

Products

about

contact