signals via the output line 256 to adjust the position of the pzt 248 and the second mirror 246 in time the pzt 248 will reach a movement limit after which the pzt 248 may no longer move to adjust the position of the second mirror 246 at this time the seeder controller 252 performs a u201c seeder reset u201d to return the pzt 248 to its starting position the seeder controller 252 sends a reset signal via the output line 256 to the pzt 248 and upon receiving the seeder reset signal the pzt 248 moves from its current position to the starting position the seeder controller 252 may also be used to control when a reset of the pzt 248 is performed one issue with seeders may be that a reset of the pzt 248 may occur automatically and could occur during full system lasing a seeder 39 s manual controls may be modified and integrated into the seeder controller 252 and the ucc controller 242 in order to predict a need for seeder resets and performs seeder resets at a time when it is appropriate to do so with reference to fig3 an example graph 300 showing the temporal profile of the laser beam 108 as a normal output from a dpssl oscillator is illustrated the beam 108 may be output from the oscillator 102 between a seeder reset operation with no substantial effect to the beam 108 with reference to fig4 an example graph 400 showing the temporal profile of the laser beam 108 output from the oscillator 102 during a seeder reset operation is illustrated graph 400 illustrates mode beating in the beam 108 output from the oscillator 102 caused by a seeder reset operation with reference to fig5 a flowchart illustrating an.