505nm and 480nm diode RESULTS

[paul1598419]

I wonder if you could get any of the diodes to get close to 495nm... I personally would value 495nm over 589nm

I'll know more once I see one, but from what I've seen so far, my best guess is no. Not with this diode. Probably won't even get to 488nm.

 

[CurtisOliver]

My highest prediction is 486nm. And that's starting with one of those higher wavelength diodes to begin with. I can't see them getting any higher than that without damaging them.
But 480+ is still beautiful and unique to own.

 

[Albert1007xd]

Woohoo if there's any group buy on the 470-480nm diodes, or someone is wanting to sell me one, I'm in for sure!

 

[ZRaffleticket]

Just to get this out there, mine are all spoken for as of now. As soon as I hear from them that more diodes are available you guys will hear it.

 

[CynicalBrad]

Did we ever get a supposed model number on these? The only diodes in this wavelength range seem to be n¡chias and unless these are putting out 100mW @ 130mW,even that is ruled out. They have one that is designed to be 473nm.

 

[diachi]

Good to see the results, thanks for organizing that! Hopefully they can make 480nm with a little bit of a push. More testing needed I suppose.

 

[Deleted member 16589]

Did we ever get a supposed model number on these? The only diodes in this wavelength range seem to be n¡chias and unless these are putting out 100mW @ 130mW,even that is ruled out. They have one that is designed to be 473nm.

These are Sharp diodes. As for a model number Not so far.

Good to see the results, thanks for organizing that! Hopefully they can make 480nm with a little bit of a push. More testing needed I suppose.

No problem
As bad as this sounds I may put that 473 on ebay to see if I can recoup my money.

 

[CynicalBrad]

I'm willing to bet that these very well may be 473nm diodes. I think we need to test one on a spectrometer starting at lasing threshold and plot mA in vs power vs wavelength. Would hate to blow one by over driving say a 30mW 473nm rated diode trying to get 480nm out of it due to a mislabeling.

 

[LtKernelPanic]

480+ would have been nice but if more become available even at the 473-6 range I'd be very interested in one or two depending on price.

 

[paul1598419]

It appears that I will be getting some of these (the so called 480nm diodes) to measure with my spectrometer. Once I have done that, I will post the results for everyone to examine. Keep your fingers crossed.

 

[ZRaffleticket]

Yup. I really hope that my batch ends up being overall higher WL than the first batch. Fingers crossed. 480-485nm is the best blue.

 

[Deleted member 16589]

It appears that I will be getting some of these (the so called 480nm diodes) to measure with my spectrometer. Once I have done that, I will post the results for everyone to examine. Keep your fingers crossed.

NICE How many ?

Yup. I really hope that my batch ends up being overall higher WL than the first batch. Fingers crossed. 480-485nm is the best blue.

I hope a 488nm shows itself.

 

[diachi]

Would be interested in seeing a Vf vs If graph for both LDs when someone has a chance to test that out... Thinking of driver options.

 

[paul1598419]

NICE How many ?

Several.



I hope a 488nm shows itself.

Me too. If there is one around, I'll probably find it.

Edit: @ diachi

I cannot kill any of these diodes in search of the highest power or wavelength, but will try to get enough information for a reasonable graph. As for drivers, I am leaning toward the adjustable X-Drive by laseerer. I still have a couple in my stock.

 

[diachi]

Me too. If there is one around, I'll probably find it.

Edit: @ diachi

I cannot kill any of these diodes in search of the highest power or wavelength, but will try to get enough information for a reasonable graph. As for drivers, I am leaning toward the adjustable X-Drive by laseerer. I still have a couple in my stock.

Yes, not looking for a kill test, just a Vf/If graph up to around the rated forward current, maybe a little past it. I'd like to use a flexdrive with these LDs but maximum output voltage is 5.5V.

 

[paul1598419]

laserman121, did they happen to mention what Vf was at 130 mA? Don't have to know, but it would be nice to know.