You don/t even need to turn the diodes off. Follow the energy. If the Q-switch is on in this laser, the diodes are still pumping the rod while it lases, adding a small amount of energy to the output pulse. When the Qswitch is off, the energy is being stored in the rod. Simple Conservation of Energy,
This is not the "Align the mirror" type of Qswitch, this one acts as a intracavity loss, preventing lasing.
Where did you think the energy would come from to destroy the diodes?
Steve
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...