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ArcticMyst Security by Avery

PERMANENT THREAD: Ebay& other internet FINDS of interest- read all the OP please sub

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What y'all think?
.https://www.ebay.com/itm/175675291955

I like 520nm & 505nm much better than 532nm as far as the color, basically a rich emerald green vs. piss yellow green.
A multi watt multi mode in the 475nm - 505nm range would be more exciting IMHO.
Now a single mode direct doing over 1w anywhere from 465nm - 635nm would be worth a couple hundred without hesitation.:)
 

Darktron

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Just saw this on ebay no clue if is a good price but if interested send an offer Coherent Compass 561-25
.https://www.ebay.com/itm/234961810285
 
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They have this one too that says pumped by 808nm diode:
 
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I bought one of the 589nm ones, I'll report back when I get it.

Do 561nm use a 808nm pump? I thought it was a deeper IR
It's an IR diode that shines through a frequency changing crystal to produce the 561nm color.
 
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I ended up buying one of each of those pens too, will try to remember to update on any info I find. Based on discord conversations, apparently the 589's are actually 591nm. Supposedly they both use the cursed SFD crystals.

Hard to say what the pump is without checking if that's the case, though I think all of the more lasence modules have an 808nm pump so I'd like to think that's accurate.

Do 561nm use a 808nm pump? I thought it was a deeper IR
The common Nd:YAG DPSS 561's usually are 808nm pump -> Nd:YAG -> 1122nm -> doubler crystal -> 561nm
 




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