THE SMART TRICK OF KYW CRYSTAL THAT NO ONE IS DISCUSSING

The gain bandwidth e.g. of Yb:KGW and Yb:KYW is rather big when compared with that of Yb:YAG. This permits for wide wavelength tunability and for Significantly shorter pulse durations from method-locked lasers. Values very well down below 100 fs have already been reached with passive method locking.The Yb-doped potassium yttrium tungstate (Yb:KYW)