The same diodes, YES, works very well, all the N1h1a arrays are strings in series.
You can also get decent efficiency with a simple linear regulator with many diodes in series, I was running all of these off of a single lm338 configured as a current limiter.
If your laser diode needs 2A @ 5V and you have 10 laser diodes in parallel, then you need 20A @ 5V.
But in series you need 50V @ 2A for the 10 diodes.
It's actually safer to run in series because inconsistencies could cause 1 diode to draw more than another if in parallel, but in series that's not an issue.
Sheltering in place and being somewhat bored I bought a used projector for cheap with 2300 hours and harvested 24 x M-140 diodes that work very well, I am driving 4 laser diodes in series @ 1.6a using a LM338 as a current regulator using 0.8 ohms across the adj. and output pins and 8 x 18650 in series,.....my expideted mounts are angle brackets giving me X and Y adjustment so I can converge the beams where ever I want to.........thinking about what else I can do with all of these diodes.......maybe knife edge a bunch ? Anyway just goofing around and thought I would post a couple of...
