THE SMART TRICK OF KYW CRYSTAL THAT NO ONE IS DISCUSSING

The achieve bandwidth e.g. of Yb:KGW and Yb:KYW is quite huge compared with that of Yb:YAG. This permits for vast wavelength tunability and for Substantially shorter pulse durations from method-locked lasers. Values effectively below a hundred fs are actually obtained with passive manner locking.The comparison with Eyeglasses is appropriate since