Optical grade lithium niobate wafers are specially prepared wafers made from high-quality lithium niobate crystals with extremely low levels of impurities and defects. These wafers are used in advanced optical applications where high precision and reliability are critical, such as in telecommunications, laser technology, and nonlinear optics.
The process of producing optical grade lithium niobate wafers involves a series of rigorous quality control measures to ensure that the resulting wafers are of the highest quality. This process includes careful selection of starting materials, meticulous crystal growth, precise slicing and polishing, and rigorous testing of the optical and electrical properties of the resulting wafers.
Optical grade lithium niobate wafers have several important properties that make them ideal for optical applications. These include high refractive index, low optical loss, and a high electro-optic coefficient. These properties allow for efficient and precise manipulation of light in optical devices such as modulators, filters, and switches.
Optical grade LN wafers are used for production of optical parametric oscillators, infrared detectors, integrated optic circuits, Wallaston prisms, holographic optical elements, SHG blue laser. They usually have Y-cut and Z-cut orientations, double or single side polished (DSP or SSP).
|Material||Optical Grade LiNbO3 wafes (White or Black)|
|Cutting Angle||X/Y/Z etc|
|Thickness||0.18 ~ 0.5mm or more|
|Primary Flat||16mm/22mm /32mm|
|Orientation Flat||All available|
|Surface Type||Single Side Polished /Double Sides Polished|
|Polished side Ra||<0.5nm|
|Edge Criteria||R=0.2mm or Bullnose|
|Optical doped||Fe/Zn/MgO etc for optical grade LN< wafers|
|Wafer Surface Criteria||Refractive index||No=2.2878/Ne=2.2033 @632nm wavelength|
|Particles ￠>0.3 µ m||<= 30|
|Scratch , Chipping||None|
|Defect||No edge cracks, scratches, saw marks, stains|
|Packaging||Qty/Wafer box||25pcs per box|