Lpc826 - lpc 815 - phr803t - sfaw210 - ggwh20l - bdr-s06j

[edison]

Yes i thought the same. They are on the same wavelenght 658nm

I have 150 pieces of the OPTIMA lenses and they have very low losses and a crisp clean beam. If anyone wants one to test it let me know

[Solarfire]

Yes i thought the same. They are on the same wavelenght 658nm

I have 150 pieces of the OPTIMA lenses and they have very low losses and a crisp clean beam. If anyone wants one to test it let me know

I'm interested. Can you do me 2 for testing, are they mounted, if not what's the lens diameter? Can you PM me a price for 2 shipped to Germany with your PP infos?

I just sorted out a batch of killer 815ers (500+ mW) that need to be tamed.

Thanks!

[laserwinkel]

have just sended out the mails for people that wanted to buy lpc826's
if you have not received an mail i'm sorry they are out of stock now

i have not planned another GB for the 826's as i have much on the todo list at the moment.

[LaNeK779]

I just sorted out a batch of killer 815ers (500+ mW) that need to be tamed.

so frank, is it safe to assume that all "type 2" 815s will stand up to this sort of "abuse"?

i'm also waiting for 2 optima lenses from edison, to run my own tests (especially against the 405-g-2 lenses)

[Solarfire]

so frank, is it safe to assume that all "type 2" 815s will stand up to this sort of "abuse"?

i'm also waiting for 2 optima lenses from edison, to run my own tests (especially against the 405-g-2 lenses)

Hi Chris,
Unfortunately it’s not that simple. There just haven’t been enough diodes tested in this direction, to defiantly be able to say “yes the type 2 diode is always the killer diode”. So far I’ve only sorted out 4 out of my batch of 10 type 2s that meet up to the killer diode specs and they happened to be of the type 2. The rest I might test today.


A major problem in testing open can diodes is the fact that the die is exposed. So if one pops unexpectedly early you never really know if it was due to over current/power, contamination of the facet or physical damage caused during extraction. Inspection of the facet may be possible with a microscope.


The best would be if there’s a visual physical difference of the diodes themselves in order to identify the killers.

[LaNeK779]

well, it s a good thing that we on;y have to go through only type 2 cans, instead of all we have at hand.

i'll try to plot a "current vs mw" curve of the ones i have and see what i get

[laser_freak]

well, it s a good thing that we on;y have to go through only type 2 cans, instead of all we have at hand.

I do not believe that is an accurate conclusion. Much more testing is necessary to confirm.

[Solarfire]

A short preliminary info:


I’m trying to find a way to distinguish the higher power diodes from the lower power without the risk of killing them. In dnar’s table there is a power delta to be seen of 5mW @100mA between the high- and lower power diodes. So I decided to measure and label my diodes accordingly. After checking output @100mA I would have to say that the diode mount type has no meaning. Looking at this 5mW delta as a reference worked pretty well and appears to be consistent. I had 9 of each group for testing and the result was 5 x yes and 4 x no in each group.


If I get to it later I may extract a couple of each type and properly mount and measure the top end of the power output. Maybe this is a way to select the diodes!?


Cheers!

[dnar]

Sounds logical. You could also compare diodes at 420 or 460mA, as the differences are noticeable yet at this current you shouldn't be popping them.

[Solarfire]

Sounds logical. You could also compare diodes at 420 or 460mA, as the differences are noticeable yet at this current you shouldn't be popping them.

I only chose the 100mA range due to the diodes still being in the sled mount/heatsink and the heat sinking of these are just enough for short tests at this level. If I'ts just the diode and needs mounting anyway then a higher current level would be the better way to go.