This is the second part of repairing the blue laser head with 8 blue laser diodes. In part one I ended at the point where i found that the lenses where damaged. This video is the second and final half of the restoration. Here I install new collimating lenses, align the knife-edge mirrors, set the proper current for the laser diodes. After those steps are done I tackle the problems that caused the failure of the lenses which include sealing the back of the laser head properly and adjusting the TECs inside of the laser head so that they do not run so cold. I also do some investigation as to how the lenses could of failed and some attempts at finding a way to restore the original lenses, though with very mixed luck.

This Laser came in running about 3.5 optical watts out, in part 1 it went up to 6.5 optical watts out! Find out the final power of this laser after the rebuild!