Wow those are pretty, i never realized difraction gratings made the laser so awesome! i'm gonna have to get some.
I am waiting on a green....i just went with a 50mW module after my last two 100mW from o-like broke.
My dream is to make a 300mW red, 500mW Blu-ray, and 200mW green in matching Coleman Max hosts. but thats like $500 in parts to make them! one day......maybe