SUPER FREAK "445nm diode"

[Tech_Junkie]

And I don't think my girlfriend appreciates being kept up for... well this.

ROFL, my girlfriend is used to it. :tired:

 

[lazeerer]

You jerk - now you're keeping me up too ;p

I'm working hard, but I'm a lot slower at binning diodes with my setup. I'm about 16 diodes into the H-series. So far, 2.55 W with a G lens is the best from this array.

I'm tryin here! And I don't think my girlfriend appreciates being kept up for... well this.

You keep me up i keep you up.

I told her iam going to the bathroom. Works every time.:crackup: However ill be waking up with a smack at the back of my head for sleeping down in the work desk.

2.55W Stunning.!

I wish they where cheaper so we can get more of them to test. They sound like they are more consistent in the ~2.5W range.

To be honest i would take many 2.55W diode over 1 of these any day.

As soon as i talked to you i went to lay down and it was all i was thinking about is to go test them.! LOL I for some reason alway never get any sleep iam running on like 35 Hours with maybe a few hours of sleep tops.

After finding this one i would not be surprised if there is some Near 3W diodes out there floating around.!

 

[rhd]

You keep me up i keep you up.

I told her iam going to the bathroom. Works every time.:crackup: However ill be waking up with a smack at the back of my head for sleeping down in the work desk.

2.55W Stunning.!

I wish they where cheaper so we can get more of them to test. They sound like they are more consistent in the ~2.5W range.

To be honest i would take many 2.55W diode over 1 of these any day.

As soon as i talked to you i went to lay down and it was all i was thinking about is to go test them.! LOL I for some reason alway never get any sleep iam running on like 35 Hours with maybe a few hours of sleep tops.

After finding this one i would not be surprised if there is some Near 3W diodes out there floating around.!

Me neither. I pushed one of the diodes to 1.95 A. Definitely a marginal return scenario, but at least it didn't get into negative returns for that 1.8 to 1.95A increase. The downside, is that I was only willing to try that with a moderately efficient diode, so the increase to 1.95A didn't break any records.

Here's an interesting piece of information I didn't have before -

In my testing tonight, efficiency and wavelength have been negatively correlated, absolutely 100% of the time. The bottom 4 diodes out of 16 I tested tonight in terms of output, are the highest 4 in terms of wavelength - and markedly so. They're the freak wavelength diodes that get 3 or 4nm higher, all else the same.

It's not a huge sample size that I'm working with, so be cautious of drawing any principals from my results to apply elsewhere. But as least as far as this particular H-series projector that I'm working with right now goes, there's a clear negative correlation between the two.

 

[Fiddy]

This is awesome!

and who else though of rick james when the thread tittle is super freak?

 

[lazeerer]

Me neither. I pushed one of the diodes to 1.95 A. Definitely a marginal return scenario, but at least it didn't get into negative returns for that 1.8 to 1.95A increase. The downside, is that I was only willing to try that with a moderately efficient diode, so the increase to 1.95A didn't break any records.

Here's an interesting piece of information I didn't have before -

In my testing tonight, efficiency and wavelength have been negatively correlated, absolutely 100% of the time. The bottom 4 diodes out of 16 I tested tonight in terms of output, are the highest 4 in terms of wavelength - and markedly so. They're the freak wavelength diodes that get 3 or 4nm higher, all else the same.

It's not a huge sample size that I'm working with, so be cautious of drawing any principals from my results to apply elsewhere. But as least as far as this particular H-series projector that I'm working with right now goes, there's a clear negative correlation between the two.

So these 2.55W ones are the ones with the Higher WL is what your saying.? So would say that diodes that are very efficient like these will Always have a Higher WL or have you tested an of the Very efficient diode to be lower in WL then an 445nm diode.

 

[Fiddy]

i think what he means is the freak power diodes (2.4W+) wont be high WL diodes (449nm+)

 

[rhd]

So these 2.55W ones are the ones with the Higher WL is what your saying.? So would say that diodes that are very efficient like these will Always have a Higher WL or have you tested an of the Very efficient diode to be lower in WL then an 445nm diode.

I may have phrased that confusingly -

In my experience with the H-series array, the higher the efficiency, the lower the wavelength.

In other words, if you tested two diodes, and one put out 1,000 mW at some specific current, and the other put out 1,250 mW at the SAME specific current, you would expect the diode putting out 1,250 mW to have a lower wavelength.

It's basically the opposite of what we'd like in an ideal world.

But it's also a really small sample size, we need more data,

 

[lazeerer]

i think what he means is the freak power diodes (2.4W+) wont be high WL diodes (449nm+)

Got it.:beer:

I may have phrased that confusingly -

In my experience with the H-series array, the higher the efficiency, the lower the wavelength.

In other words, if you tested two diodes, and one put out 1,000 mW at some specific current, and the other put out 1,250 mW at the SAME specific current, you would expect the diode putting out 1,250 mW to have a lower wavelength.

It's basically the opposite of what we'd like in an ideal world.

But it's also a really small sample size, we need more data,

I see. I guess that would make more sense because using the hotter a diode will get the more it would shift in WL.

 

[Tech_Junkie]

The thread should be called diode freaks. Go to bed will ya.

I guess you guys are true laser addicts.

I'm off to the antique fair in an hour. Thats where I get my fix. :wave:

 

[Tonga]

That, really IS AWESOME:beer:!!

 

[Blord]

Nice find, wanna sell it ?

Could you measure the output at 1.62A with the G1/G2 lens ?

 

[lazeerer]

This is awesome!

and who else though of rick james when the thread tittle is super freak?

LoL.!!!! Yes after i put it up the song came into my head.:crackup:

The thread should be called diode freaks. Go to bed will ya.

I guess you guys are true laser addicts.

I'm off to the antique fair in an hour. Thats where I get my fix. :wave:

It runs through my blood.!:eg:

Find anything good.?

Nice find, wanna sell it ?

Could you measure the output at 1.62A with the G1/G2 lens ?

Over my Dead Body.:angel:

Yes I can. Iam almost finished with my build.

 

[Blord]

Thanks, I appreciate it.
At 1.62A my 445nm diode is hitting the 2Watt wall and my LPM can't measure it higher. With your data I could estimate the power at 1.8A.

 

[lazeerer]

Thanks, I appreciate it.
At 1.62A my 445nm diode is hitting the 2Watt wall and my LPM can't measure it higher. With your data I could estimate the power at 1.8A.

If i was to estimate it, it would be somewhere in the 2W-2.1W range with a G1/G2 lens at 1.62A.

Normal diodes that i have that do over 2W is diodes at 1.76A at ~2.2W.

I would compare yours against that Not this diode in this thread. This One has a Much larger mW increase per mA then any other diode i have seen.


Sounds to me you got a 2.2-2.3W diode at 1.8A. But thats just a guesstimate.

Do you know when looking at the meter is it still increasing very fast when your at 2W or do you see it slowing down.?

In other words when your meter is about to max out is it still ramping up fast or has slowed down in increasing mW. Usually when a diode is near its max on a Thermopile type meter you can see the increasing of the mW slowing down when its reaching its peak or in other words leveling out.

 

[Garoq]

That is epic Angelos. You keep raising the bar with these freak diodes. :bowdown:

I'm looking forward to hearing the final numbers once you finish your build.

So far I've only found two diodes that exceeded 2.4W. One of them is in a personal build using a new host that I have been testing. But the higher output ones seem to be a lot more common now.

 

[lazeerer]

That is epic Angelos. You keep raising the bar with these freak diodes. :bowdown:

I'm looking forward to hearing the final numbers once you finish your build.

So far I've only found two diodes that exceeded 2.4W. One of them is in a personal build using a new host that I have been testing. But the higher output ones seem to be a lot more common now.

I would just conceder it being the Luck of the Draw.

This is the one i have been looking for from the time the A140 i got that did 2.4W rolled off the table and LED.

That one was my favorite and had the best efficient i found for its time.

I got to say though that i think in the H Series projector that Rhd has been going through that will see more efficient diodes in the H series as common then in the M140. Increasing the chances of finding diodes like this. Thats just my gut feeling. To bad they are to expensive to Explore unless you get a good deal on them.

I cant wait to hear his findings.