12x BR DIODES

"All 12x Owners" datasheet updated with the entrance of Slipstream 3!

HM: IMHO, I was thinking to collect data relevant to complete BR just to help members to see and follows the experiences and the results of what I would like to call "an assembled handeld laser". I'm not willing to ignore other tests, such that I added your "bench laser" to the list after having asked the opinion of another big member of the Forum.

Now, having seen that also ff-racer has "published" data relevant to another bench test, and having received from IgorT the data relevant to two other 12x bench tests, I think it could be better to open another plot relevant to 12x "bench tested" lasers.
This just to give the right space for both experience types: how a "handheld" BR can be pushed and how a "bench tested" one can be pushed too, with the relevant lifes.
This, of course, if members think that splitting the two kind of experiences can be useful for the Forum, I'm open to all suggestions.....; after all, for the Forum, I'm only like a book-keeper, not a researcher for sure.

Franko --

I have asked Ave to make a limited access forum for "advanced" testing.

For everyone --- 12X @ 750 mA !!! Don't go there ................That's over 900 mW !!!!

HMike

Hemlock_Mike said:

I have asked Ave to make a limited access forum for "advanced" testing...

Click to expand...

Well I hope it's not this "veterans" subforum... :undecided: you need 1,000 posts to get in... Franco doesn't have 1,000 posts and neither do I...

An advanced testing forum likely won't happen. Don't worry about it.

HMike

I'm all for doing this testing with a more standard approach, and kicking the Flexdrives to the side for now, so that we can all use our more reliable bench power supplies for data gathering.

The F-drives (and possibly other hand-held drivers) may be the only barrier in a reliable comparison of the high-mA testing being currently performed on these diodes. We are reaching quite high numbers not previously seen in other diodes, and I'll admit that my own V5s are acting funny, once the hand-held units are assembled and clicked-on for use.

The last two times I assembled hosts, I set specific mA numbers on the Flexdrives using test loads. When the power buttons were pushed for the first time, the LPM showed numbers greatly out of sync from the values I found during bench supply use. This led me to simply ignore the danger on the last attempt where this happened, and let the forum witness runtimes at 885mW, at unknown mA, just to see the diode burn. To my surprise, it didn't burn, which is where I feel things started to get interesting around here. :evil: We seem to have shifted our "faith" in these diodes, and more are pushing these far past any numbers we had dreamed of months or even just weeks ago.

Tonight I took it upon myself to build a bench sink setup for 12X testing, and hopefully more useful degradation plots will result from extended running at higher currents with better sinking.

This is an XBOX 360 heatsink milled down to a more manageable size, and a THOR Labs 9mm diode mount attached to it with 5.6mm bushing in place. When I have some extra time, hopefully by next weekend, I can start a murder test on one of these diodes. (I can't promise anything soon yet, because I have a few customer builds which must take priority before my own murdering begins.)





Hemlock Mike, sorry about not giving a timely PM response to your questions. I hope you will realize from my above reply the answer to your main question on amperage. :yh:

Hey guys, I just wanted to say that this is one of the most interesting threads on here for me. I will admit that i really dont know all that much about lasers. But i find them really interesting. I got my first PHR a little over a week ago. And after blowing a couple and then getting them to run really stable i just built a GGW 6x and love it. Yesterday i built the LCC red out of the GGw sled and i am running it at 400mA and it is running great. But i am really loving the data you guys are providing here. I wish i had the means to get the proper lpm and the know how to take acurate plots on these high powered diodes. I dont have the money to invest in all the equipment to do such tests and i just want to thank everyone of you guys for doing these murder test for use so we can make a pretty accurate decision on what a safe current for long life would be. You guys are great.

Exerd said:

Tonight I took it upon myself to build a bench sink setup for 12X testing, and hopefully more useful degradation plots will result from extended running at higher currents with better sinking...

Click to expand...

wow, very impressive! Looking forward to your continued research :beer:

Exerd;

Great job on the heatsink. That should easily handle the heat.

I like the diode clamping arrangement from Thor.

Is that clamp their part #LM9F ?

It reminds me of my 12mm green laser module clamp-on puller/heatsink:


Now with the large heatsink and a steady lab power supply,
you can do some HIGH POWER Blu-Ray Testing.

LarryDFW

FrancoRob;

Here is my vote for the most exotic & expensive 12X BR.

It was cast in Silver by by the owner StridAst.
Kenom took the photo and measured it :
545mw @ 380ma

Of course it has my lens assembly.

LarryDFW

Hmmm silver eh? Thats the best heat sink you can hope for unless you have a diamond one.

MERC said:

H... the best heat sink you can hope for unless you have a diamond one.

Click to expand...

Preferably synthetic diamond. Coated with a layer of graphene between diode & host...

Wikipedia's my friend...

I'm just waiting for my flexdrives to come in then I will have all the parts for my 12x build. I will be using my old Dorcy host that is currently hosting a red module. It's the only host I have with a decent heat sink. Power source will be a 3.6v RCR123A battery and the flexdrive will be set to 420mA. Hopefully the drivers will be in my mailbox today.

Dear all,

please post & vote on Igor's next 12X murder round here, thanks :beer:

"All 12x Owners" datasheet has been updated with the entrance of StridAst (gorgeous, indeed)!
Then, as anticipated in my previous answer #402, I have added to the thread a specific datasheet relevant to the bench tested diodes. For this reason the Hemlock Mike 2 diode has been moved in this new one. BTW, for an easy following of the evolution of each 12x diode, I'll identify the single owner diodes (in case they are more than one) with different numbers, also if listed in different datasheets.

Franco ---

Nice change -- I like it. Having the bench group seperate is good.

Just a note --- I was running TEC cooling when it died at 1 Watt.

HMike

Hemlock_Mike said:

Franco ---

Nice change -- I like it. Having the bench group seperate is good.

Just a note --- I was running TEC cooling when it died at 1 Watt.

HMike

Click to expand...

Ah, ok Mike, I'll update the datasheet! How much was the running time when it died? I have to update the bench plot in any case, as I just received a message from Igor informing that the number 2 has been installed in a host....