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FrozenGate by Avery

520nm diodes - new kid on the block - More powah

Very exciting! I can't wait for the unstable, bulky, fragile and expensive DPSS lasers to be obsolete once and for all.
 
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Those diodes are >520 nm than PL520, at least those who passed through my hands.

Sorry, I had no intention to measure MAX power.

As they are more bulky (5.6 mm) probably it might be possible to extract more power. Keep temperatures low too. Graphs "Optical Output Power" and "Threshold Current" in the datasheet are your friends beating records :beer:
 
Atomicrox said:
Thanks for the info!
What about the divergence/beam quality?
Click to expand...

I don't have numbers for divergence. The one I looked at had quite a good mode. Though more elliptical than a 515-nm low power diode, meaning that the slow axis was less divergent 4-5 deg :thinking: If they'll come back to me I'll try to get numbers :whistle:
 
I'll be grabbing one of these as soon as tests come through, you can count on that.

I love <520nm. Hopefully I get lucky with another 514nm diode.
 
Sounds good. I've got high hopes for these, even if they only come at 525nm. TBH I think that might be a beautiful color, closer to "pure green".
 
Flutterpie --- If you get one, you can contribute
to our knowledge on these new diodes. Why Not?

My 520 is a cool green compared to a 532 - side-by-side.
HMike
 
@Bloompyle
A thermoelectric cooler should shift the WL on those, making them ~515nm... I intend to do this with a 638nm diode... :beer:
Those 520ish diodes are too expensive for me heheh..
 
Leodahsan said:
A thermoelectric cooler should shift the WL on those, making them ~515nm... I intend to do this with a 638nm diode... :beer
Click to expand...

How low will you go? :evil:

shift const 0.25 nm/C
( 638-515 ) / 0.25 = 492 K
T_room (300 K) - 492 K = - 192 K :na: New thermometer needed :crackup:
 
Anyone tested these yet? I really want to know if 250mW of direct green is possible :D
 
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