Kerr-lens mode locking in a ring bidirectional YAG:Cr4+ laser

Fomitchev, A.A.; Moscow Institute Of Physics And Technology (State University), Institutsky Per. 9, Dolgoprudny, Moscow Region, 141700, Russia, Broslavets, Yu.Yu.; Moscow Institute Of Physics And Technology (State University), Institutsky Per. 9, Dolgoprudny, Moscow Region, 141700, Russia & Georgieva, M.A.; Moscow Institute Of Physics And Technology (State University), Institutsky Per. 9, Dolgoprudny, Moscow Region, 141700, Russia
This paper concerns a bidirectional ring YAG:Cr4+lаser. We investigated the features of bidirectional generation and explored the possibility of gyroscopic effect in the laser. We developed the model of bidirectional generation of such a laser taking into account spectral properties of the active medium.Experiments in our setup revealed that generation of the laser had a cluster character. Luminescence spectrum of the YAG:Cr4+ crystal and generation spectra of the laser showed that this medium has both...