Optical grade LiNbO3 wafers SLN CLN

Our abundance experience at growing and mass production for Optical grade Lithium Niobate on both boule and wafers (included SLN & CLN). We are equipped with advanced facilities at Crystal growing, slicing, wafer lapping, polishing and checking, all finished products are passed at Testing of curie Temp and QC inspection.

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Brief Introduction

The stoichiometric lithium niobate crystal exhibits unique advantages compared to the congruent LiNbO3. The precise control in the manufacturing process results in a more uniform crystal structure, with a higher Li+ molar ratio than congruent lithium niobate. This precise ratio reduces lattice defects, improves the symmetry of the crystal structure, enhancing the consistency and predictability of its optical rotation.

In terms of optical performance, stoichiometric lithium niobate demonstrates lower absorption coefficients, minimizing energy loss when light passes through the material and ensuring higher optical transmittance. This characteristic makes it particularly suitable for applications with stringent energy loss requirements, such as laser systems. Additionally, its uniform crystal structure and lower lattice defects reduce the effects of light quantum scattering, improving the clarity and stability of optical signals.

In the field of nonlinear optics, stoichiometric lithium niobate's superior and stable nonlinear optical properties make it excel in devices like optical parametric amplifiers and oscillators. Its higher second-order nonlinear coefficient enhances efficiency in generating second and third harmonic waves, suitable for frequency doubling and mixing applications.

Furthermore, stoichiometric lithium niobate exhibits enhanced resistance to depolarization, prolonging the crystal's lifespan and ensuring longer-term stability compared to congruent lithium niobate. Its superior thermal stability, achieved by meeting the theoretical chemical composition, makes it suitable for applications requiring high stability, such as high-power laser systems.

Product Parameters

Material	Optical Grade LiNbO3 wafes (White or Black)
Curie Temp	1142±0.7℃
Cutting Angle	X/Y/Z etc
Diameter/size	2"/3"/4"±0.03mm
Tol(±)	<0.20 mm ±0.005mm
Thickness	0.18 ~ 0.5mm or more
Primary Flat	16mm/22mm /32mm
TTV	<3µm
Bow	-30<bow<30
Warp	<40µm
Orientation Flat	All available
Surface Type	Single Side Polished(SSP) /Double Sides Polished(DSP)
Polished side Ra	<0.5nm
S/D	20/10
Edge Criteria	R=0.2mm C-type or Bullnose
Quality	Free of crack (bubbles and inclusions)
Optical doped	Mg/Fe/Zn/MgO etc for optical grade LN&LT wafers per requested
Wafer Surface Criteria	Refractive index	No=2.2878/Ne=2.2033 @632nm wavelength/prism coupler method.
	Contamination,	None
	Particles ￠>0.3 µ m	<= 30
	Scratch , Chipping	None
	Defect	No edge cracks, scratches, saw marks, stains
Packaging	Qty/Wafer box	25pcs per box

Application list:

Integrated waveguide photonics; Wave Guide Lasers; Quasi-phase Matching for SHG&OPO; EO waveguide Phase & Amplitude Modulators