I don’t know why I haven’t looked at this until now.
Apparently this has just been sitting in my projects folder since I got my diodes. It turns out that the operating voltage is 1.9V and the operating current is 370mA with a max of 2V and 400mA.
That LD power supply I bought has been pissing me off, so I think I’ll try my hand at building another one when I have some pocket change.
Jeez I suck at DC.