Lithium Niobate (LiNbO3) Crystal

Supply Ability & Additional Information

Lithium Niobate (LiNbO3) or LN crystal is widely used as frequency doublers for wave length over 1um and optical parametric oscillators (OPOs) pumped at 1064nm and quasi-phase-matched (QPM) devices.

Itionally due to its large Elector-Optic (EO) and Acousto-Optic (AO) coefficients, Lithium Niobate ( LiNbO3) is the most commonly used material for Pockels Cell, Q-switchs and phase nodulators, waveguide substrate, and surface acoustic wave (SAW) wafers, etc.

We have performed an atomistic simulation study of the defect structure of Lithium Niobate LiNbO3 crystals resulting from LiO deficiency and reduction treatments. LiO excess is found to be unlikely in Lithium Niobate LiNbO3 crystals. It is shown that oxygen vacancies are not the dominant intrinsic defect species in Lithium Niobate LiNbO3. Important defects are (Nband isolated Nbantisites.

Small regions of Lithium Niobate LiNbO3 with ilmenite-like cation-stacking sequence are likely to occur; thus Nbdefects in Lithium Niobate LiNbO3 should be interpreted as Li vacancies within ilmenite-like crystal regions.

The Sellmeier equations (λ in μm):

no2=4.9048+0.11768/(λ2-0.04750)-0.027169λ2

ne2=4.5820+0.099169/(λ2-0.04443)-0.02195λ2

Specifications of LiNbO3 crystal:

Transmitting wavefront distortion: less than λ/4 @ 633 nm
Dimension tolerance: (W ±0.1 mm) x (H ±0.1 mm) x (L ±0.2mm)

Clear aperture: > 90% central area
Flatness: λ/8 @ 633 nm
Scratch/Dig code: 20/10 to MIL-PRF-13830B
Parallelism: better than 20 arc seconds
Perpendicularity: 5 arc minutes
Angle tolerance: < ± 0.5°
AR coating: dual wave band AR coating at 1064/532 nm on both surfaces, with R < 0.2% at 1064nm and R < 0.5% at 532nm per surface.

We can provide LiNbO3 crystals with high quality and large size for all these applications.

Coupletech provides other kinds of Laser Crystal such as : Yb:YAG Crystals , Nd:YAG Crystals, Nd:YVO4 Crystals, Cr:YAG Crystals and Diffusion Bonded Crystals.

Also provides Laser Components, Pockels Cell Driver , Optical Element and Polarization Optics .