A set of ideal values for laser parameters is provided for a laser system for the fragmentation and removal of calculi. Particularly, the ideal values for laser parameters increases the effectiveness of removing calculi by increasing the pulse width. This set of ideal values for laser parameters increases the effectiveness of calculi removal by decreasing retropulsion distance of calculi fragments and by breaking up the calculi into smaller fragments that can then be easily removed from the body without the use of baskets or graspers.
