NOT KNOWN DETAILS ABOUT KYW CRYSTAL

The achieve bandwidth e.g. of Yb:KGW and Yb:KYW is quite large compared with that of Yb:YAG. This allows for broad wavelength tunability and for A lot shorter pulse durations from mode-locked lasers. Values perfectly down below a hundred fs have already been achieved with passive manner locking.This special characteristic of ultrafast pulses enabl