NUBM0G - 465-470nm Beast!

[aaronnoraa]

Yes, I've bought from pretty much all the Chinese dealers at one point or another and I know which ones are more respectable. I'm not trying to brag but I probably buy and sell more diodes than 99.97% of the people on this forum so I'd like to think I kinda know what I'm talking about.

I chalk the losses up to R&D and don't really get mad about it, especially since it's tax write-off anyways.

I know that you deal with a lot of volume and thats why I asked you , I figured you would know if their defective units were few or many.

 

[Darktron]

Test has been performed by JLasers and his diode hit 470nm with amazing power.
Is the first one on the chart. Amazed by what efficiency slope can do.
More info on his thread
Here

 

[Darktron]

As per the decan and gball issue I get it some decanned diodes die but I have 470nm, 525nm, 455nm, 445nm diodes decanned and they haven't loss a hair of power heck the 470nm has a bent pin it still works flawlessly. Anyway my point is these are new and newer materials maybe their longevity is greater aswell remember these are more efficient than older generations.

 

[Gryphon]

Hmm, it looks like JLaser deleted his post. These are some spicy little diodes!

 

[Unown (WILD)]

Sorry had to delete as he did not fulfil his part of the bargain yet

 

[Shmackitup]

Re-capped diodes are available here: https://www.ebay.com/itm/285393701741
I think they're the same ones.

 

[Gryphon]

$210! ooof, but if its legit it'll be worth it

 

[RedCowboy]

As per the decan and gabll issue I get it some decanned diodes die but I have 470nm, 525nm, 455nm, 445nm diodes decanned and they haven't loss a hair of power heck the 470nm has a bent pin it still works flawlessly. Anyway my point is these are new and newer materials maybe their longevity is greater aswell remember these are more efficient than older generations.

I have a much better image of a nubm substrate stack glowing at threshold and above and you can see the tiny slit at the P/N junction behind the front facet where all the photons exit, it's amazing it can withstand it, however the substrate stack is hygroscopic and coated to protect it, but it is also under a can ( GBall or window ) with an inert backfill ( likely dry nitrogen ) because when they are de-canned then tiny particulate in the air will burn on the facet at the P/N junction over time damaging the protective coating, this will let moisture from the air in and cause fractures greatly reducing the MTTF

This is not my image, these are from endurance lasers, but you can see how tiny the substrate stack is, imagine a small slit center of the front facet, it needs the can and backfill above a couple of watts. Note the part on the left is the anti-static device.

 

[Shmackitup]

I have a much better image of a nubm substrate stack glowing at threshold and above and you can see the tiny slit at the P/N junction behind the front facet where all the photons exit, it's amazing it can withstand it, however the substrate stack is hygroscopic and coated to protect it, but it is also under a can ( GBall or window ) with an inert backfill ( likely dry nitrogen ) because when they are de-canned then tiny particulate in the air will burn on the facet at the P/N junction over time damaging the protective coating, this will let moisture from the air in and cause fractures greatly reducing the MTTF

This is not my image, these are from endurance lasers, but you can see how tiny the substrate stack is, imagine a small slit center of the front facet, it needs the can and backfill above a couple of watts. Note the part on the left is the anti-static device.

I have a digital microscope I bought for purposes like this but I've yet to find the time to use it.

 

[Darktron]

Re-capped diodes are available here: https://www.ebay.com/itm/285393701741
I think they're the same ones.

Nope not the same. These are nubm0c

 

[Darktron]

I have a much better image of a nubm substrate stack glowing at threshold and above and you can see the tiny slit at the P/N junction behind the front facet where all the photons exit, it's amazing it can withstand it, however the substrate stack is hygroscopic and coated to protect it, but it is also under a can ( GBall or window ) with an inert backfill ( likely dry nitrogen ) because when they are de-canned then tiny particulate in the air will burn on the facet at the P/N junction over time damaging the protective coating, this will let moisture from the air in and cause fractures greatly reducing the MTTF

This is not my image, these are from endurance lasers, but you can see how tiny the substrate stack is, imagine a small slit center of the front facet, it needs the can and backfill above a couple of watts. Note the part on the left is the anti-static device.

 

[Darktron]

I have a digital microscope I bought for purposes like this but I've yet to find the time to use it.

You can send it to me

 

[Shmackitup]

You can send it to me

Yes, I know you want it... LOL

 

[aaronnoraa]

Nope not the same. These are nubm0c

They also have that same diode (the older 4.1w nubm0c) recanned without FAC for much less than the 200 dollar FAC unit.

Lasertree 465nm 4.1W Blue Laser Diode LT-LD-465-4100M | eBay

Protect your yourself from the laser when you operate on it.

www.ebay.com

 

[Darktron]

They also have that same diode (nubm0c) recanned without FAC for much less than the 200 dollar FAC unit.

Lasertree 465nm 4.1W Blue Laser Diode LT-LD-465-4100M | eBay

Protect your yourself from the laser when you operate on it.

www.ebay.com

Again NUBM07, NUBM0C are the older models of this new diode. This is a newer diode it just came out literally still in the 100s serial numbers production counts.

 

[aaronnoraa]

Test has been performed by JLasers and his diode hit 470nm with amazing power.
Is the first one on the chart. Amazed by what efficiency slope can do.
More info on his thread
Here
View attachment 76367

sploosh. This is the most powerful visible 9mm diode yet, no?