THE FACT ABOUT BIBO CRYSTAL THAT NO ONE IS SUGGESTING

Hygroscopic crystal materials deteriorate when they are not normally kept in sufficiently dry air (or simply a dry purge gas). This is applicable e.g. to KDP and BBO, As well as in a lesser extent to LBO. It can be useful to help keep this type of crystal at a considerably elevated temperature, which makes it easier to maintain it dry.Laser process