Promising approaches to optimize the efficiency of laser hydroacoustic processing of biological tissues

The results of experimental study of the fiber tip end shape influence on the size of the Yb,Er:Glass-laser-induced cavitation bubble and the value of the bubble collapse pressure, as well as theoretical study of the possibility of using $1.45 \mu \mathrm{m}$ and $1.54 \mu \mathrm{m}$ laser radiation to pre-heat the liquid before high-intensity laser pulse action, are presented.