the other day I took the 445 diode out of its heatsink to project's its uncolimated beam, however after running for say 20 sec's at full blast it completely turned off.. Thought I lost the diode but it seems to work fine again. Obviously I did not repeat the process. All solder concretions were fine so what could it be? I'm speculating that the lasorb may have acted when the diode's forward voltage went up due to heating of the diode ?????
Any ideas on this?