KYW CRYSTAL SECRETS

The gain bandwidth e.g. of Yb:KGW and Yb:KYW is very big in contrast with that of Yb:YAG. This permits for vast wavelength tunability and for Considerably shorter pulse durations from method-locked lasers. Values nicely down below 100 fs have already been attained with passive mode locking.The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal,