KYW CRYSTAL SECRETS

The gain bandwidth e.g. of Yb:KGW and Yb:KYW is rather large in comparison with that of Yb:YAG. This allows for extensive wavelength tunability and for A great deal shorter pulse durations from mode-locked lasers. Values very well below one hundred fs have already been accomplished with passive method locking.The Yb-doped potassium yttrium tungsta