- Mar 17, 2006
Seems pretty normal for a multi-mode diode. All of mine put out bar shaped beams with bad divergence. My 1W 635 red is particularly bad. You get a giant bar with a brightspot in the middle and bad divergence.Hey guys....
How bad does an uncorrected 650nm diode diverge? I did a quick test tonight and dunno if this is normal. Please be aware the dot on the door isn't circular. Instead it's a rectangular thin line about half the length of an iPhone
Gotta stick to single mode or DPSS for quality beam specs generally. Beam expanders can help though.