HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD BBO CRYSTAL

Occasionally, the mismatch may be smaller. For example, when a β-BBO crystal is used to frequency double 1550 nm mild and supply 775 nm light, the group velocity mismatch is only some femtoseconds for every millimeter.The two frequencies' section velocities are equal when they contain the similar refractive index. The refractive indices for both