BBO CRYSTAL FOR DUMMIES

In some cases, the mismatch may be small. As an example, each time a β-BBO crystal is used to frequency double 1550 nm mild and supply 775 nm light-weight, the group velocity mismatch is only a few femtoseconds for each millimeter.With proper care and maintenance, BBO crystals can past for quite some time. Frequent cleansing and proper storage m