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488nm pocket mini 10440

thanhtung

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Oct 18, 2014
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This is my build for a customer at usa!
- It run by 1 x 10440 with my Kdriver boost
- G2 lens
- Output on my LPM ~150mW, i call it is 100mW
Dutycycle: 90s on, 60s off
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gazer101

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Feb 23, 2020
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658
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Eyy, my greenie also has that rectangular artifact over the beam. Is that caused by back-reflections from a decanned diode?
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FireMyLaser

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Jan 12, 2008
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3,305
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It's a projection of the laser die. It is particularly noticeable on the Sharp 488 diodes.
 

RedCowboy

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Jul 10, 2015
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It's much bigger with a short FL lens, try a G3 and it will be much smaller in the near field and mostly un-noticable in the far field.

I get right at 100mw @ 250ma from my 488's with a G3 and 110mw with a G2 but my beam looks much better and the artifact is much smaller with the G3 lens.

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gazer101

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Feb 23, 2020
Messages
658
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No bro! It is must to has at every diodes, and you can see it more easy when you use G2 lens or any lens has focus length shorter
Yes I also noticed that the effect only appears on mine when the G2 lens is close to the diode. Makes sense, you can't completely remove reflections from the laser die
 

Encap

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May 14, 2011
Messages
6,140
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Nice work T (y)

Great small laser to keep with you in Jacket or trouser pocket while traveling to have handy. Beautiful wavelength.

Size and shape make it useful for self-defense in these uncertain and dangerous times, as well --can be used as a "Kubotan" if necessary with just a little bit/small training and practice See video below.

 




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