Implementation of the Regeneration Regime in the Process of Generating Extremely Short Pulses in an Nd3+: YAG Laser with a Passive Shutter

Abstract

We report experimental results of using the resonator-loss-unloading method to implement relaxation properties of a passive shutter in an Nd³⁺:YAG laser with the aim of producing extremely short picosecond pulses. The application of a fast relaxing passive shutter based on a technologically advanced new pyrillocyanine dye and the use of the unloading method make it possible to obtain highly reproducible, ultrashort 7-ps light pulses from this laser.