Why is my LOC diode broken?

Jimmymcjimthejim said:

Kendall, what do you think the problem is? This is too coincidential to have three diodes from the same source have the same problem.
Jimmymcjimthejim

Click to expand...

I'm not sure bud. I'm pretty convinced it has something to do with the method though. I've used lots of LPC815 sleds from my current batch that have lased fine when I make lasers out of them.

As you probably know all diodes are unique and some are freaks getting very high powers while others are freaks getting low powers. It's just the way getting these high power lasers is.

-Kendall

I don't know if this is mentioned anywhere, but I have found that the LOCs go "LED" once the ground side wire vaporizes (or breaks off). If you inspect one of these closely you'll find that the slabs are normally grounded both on the top (wire bond) and bottom (direct contact with gold podium) with the positive lead going to the middle of the slab sandwich. With the top lead gone, all that's left is an led. BTW the two LOCs I just got from Kendall worked great. I did manage to fry one by sticking the spring in. Apparently, the bonded wires do not tolerate the resulting reflections at 350mA. Also, though I have seen this in here elsewhere, it couldn't hurt to mention again that one should not exceed 300mA with the stock small aperture acrylic lens barrel.
-Phil
:lasergun:

whoops wrong thread

Interesting none-the-less as you've brought it back. It shows that even with LOCs and experienced laserists, the extraction process is one to be mastered. Well worth a read IMO.

M