Abstract

Additive Pulse Modelocking (APM)^[1,2,3] and Kerr Lens Modelocking (KLM)^[4] are fairly new methods of generating short pulses from solid state lasers. Both produce an effective fast saturable absorber action (response time shorter than the pulse-width) that can be tailored to the system at hand. For this reason it was possible to modelock solid state lasers with long gain relaxation times that prevented stable operation with available “natural” saturable absorbers. .

© 1992 The Author(s)