Search:

Coupler on the tube is clean and I don't see any scratches or cracks on the tube.

It seems like the laser is running in "TEM01" mode. This thread seems like someone has run into a similar issue:...

my k40 laser has a two half circle shaped beams coming directly out of the tube. I've been reading up on alignment procedures (got it successfully done) but am concerned because they say that while...