For Type II BBO with two 'e' waves, the situation is more complicated, since the sign of the nonlinear coefficient cannot be changed by rotation. The sign of the nonlinear coefficient does alternate in Phi steps of 60°, so I can get two crystals to work properly together if one is cut at, for instance, Phi = 30° and the second is cut at Phi = 90° or 210°
Can you cut two crystals with the Phi angle specified like this? This is critical for my application! I can send you a copy of a paper that explains this in great detail, if you like.
Maybe I need these 2 BBO crystals as below:
1.) Type II. Theta = 37.2°, Phi = 30°,
2.) Type II. Theta = 37.2°, Phi = 90° or 210°,作者: kaka 时间: 2009-10-12 16:19
两快BBO组合提高激光效率和光束质量，坛子里林老师能做哦作者: kaka 时间: 2009-10-12 16:29
需要这方面文章可以联系本帅哥