For a look at the constants associated with LN, see [[http://www.roditi.com/SingleCrystal/LiNbO3/liNBO3-Properties.html|here]]

{{:optical-wafer-diagram.jpg?200|}}

When the wafer is aligned as shown in the image, the +x direction for an x-cut wafer is out of the page, the -y direction is in the direction of the small cut, and the +z direction is the large cut.

See [[http://www.roditi.com/SingleCrystal/LiNbO3/LiNbO3-Wafers.html|here]] for more information.

After proton exchange, ne+=.12, no-=.04