- Dec 30, 2016
That HS compound on your threads can work it's way inside, you need to be sure your diodes window is not contaminated or it will burn through.
No.Is this also on the diode window?
It's nice and clean.That HS compound on your threads can work it's way inside, you need to be sure your diodes window is not contaminated or it will burn through.
Yes, any time I see smoke try to get close I always stop and wait for the smoke to clear, I always have a fan running in my work room and a lot of the time I have a ventilation fan running as well....Yeah, at these sorts of powers it really doesn't take much contamination for the optic to be completely destroyed. Your LD window will be even easier to damage than your collimator as it's more fragile and the power density is higher there. The LD window is at least protected from the environment to some extent.
Residue from burning things, dust, grease, they'll all do it. I've cooked lenses from smoke residue after burning something a couple times. Always good to have some air movement and some distance between the optic and your "target".
Before that blade started glowing I bet it made some strong reflections with 15W striking it ?Yup! That lens is also very shot FL, it's for pumping vanadate, so it's closer to the smoke. 15W will make lots of smoke. Hell, it'll get an exacto blade glowing brightly. :eg: