This is my sextuple red laser build.

Im using 6 open can 660nm red diodes, standard aixiz lens and Edmund Optics telescopic's. The module is tec cooled for stability, each diode is running at 210mw for a total power of 1.2watts.

And the finished module -

A nice tight 3mm by 3mm beam at 1mR

The beam at 18 metres next to my green