Hello,
did you change the alignment of the glued on optics?
My array seems to be much different.
If you did draw the brackets around each spot it would indicate that your array is properly collimated.
My array is not collimated. It seems the lens it to close to the diodes e.g. no focus point but not a clean beam like one from other high power diodes.
On my array each diode is more square not rectangular.
Also the beams do "cross" at around 1m (only estimate) the top row crosses the bottom row.
Seems like I did get a "bad" array
About the TEC / Driver
Tecs don't like PWM because the constant thermal contraction and expansion of the elements will eventually break them.
Also the tec will be flowing heat back if it is switched off during the PWM cycle, this means much worse efficiency.
I think they added it for show projector use, there you don't need the full power of the diode part but most manufacturers want to have tec so the optics doesn't shift with temperature.
Think about the >48 SM red diode modules, there you need the high voltage/many channels to drive them in series and a tec to get the optics to stay align and maybe also to overdrive the diodes more.
They also have a add-on driver to get more tec power, data sheet mentions it as "Tecbooster" seems like you can connect this module? to get "up to 25A" tec output. I don't have the data sheet for this booster, but I'm confident if you contact them you will get it.
So in theory the driver could drive this monster tec that would be needed for this array.
Maybe I will check the efficiency of the module at 20°C vs 70°C.
If I get the array focused right and I need more power for cutting/engraving I will give it a shot.