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409 vs 405

C

climbak

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Apr 14, 2008
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Each diode will vary as well. I have a diode that I run in my lab and we cool it to about 15 degrees C and I can't hardly see the beam at all at 160mW, but sometimes it will be visible in the lit room at 100mW. One of the diodes we tested varied between 407-409nm give or take a few tenths.
 





Chicxulub

Chicxulub

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There's a threefold increase in brightness between 400nm and 410nm, so there's quite a bit of variability in these lasers. :)
 
F

Frechy

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Jun 18, 2008
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drlava said:
Yes, I have noticed this, too even with PS3 diodes.  The ones that were in the 408/409nm region looked much brighter than the 405/404nm ones.  You know, there must be a trash bin in a quality control department in a laser diode factory somewhere that is throwing out 410nm and above diodes!
Click to expand...

The exact same here. I had my PS3 diodes measured by a very good meter, which told me the output + wavelength. They ranged from 404nm to 410nm.
 
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