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Sharp violet laser diode 1100-1600mw for sale

wolfram

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It's my opinion that 700ish is a pretty decent output for 405 as it produces a narrower wavelength. In comparison, an ir laser diode of comparible po may burn well up close but loses energy the more distant the object. Also 405 is well absorbed by most pigments whereas ir is not at the same power. Plus flourescence of phosphorous containing materials is damn cool. Multimode 405 floursces pretty well.
 



paul1598419

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Isn't this a multi mode diode? If so, it won't have the same kind of divergence that the Blue Ray diodes do. It may be better than many high power multi mode laser diodes, but not nearly as good as a single mode diode.
 

trinh hong phuoc

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Yes,brd-209 diode is great, but they are also very sensitive, i lost some of this diode quickly,:(:(:(Sweet is about 500-600ma,> 700ma can kill them easy
 

wolfram

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Hi THP, did you find a higher mA current that is suitable for long life with this diode? For now , I am happy with 520 mA and the lens which came with it. It burns very well at 1-2 feet, Not as well as a single mode at that distance, but pretty well. At 6 inches though, I would say pretty close.
 

trinh hong phuoc

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Yes,520ma is great current for sharp diode,but i also like run at 800-900ma,it is so strong
 

wolfram

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I have one running at 620mA. It is outputting 950mW with a G2 lens. It sucks the power out of a 18650 battery though.
 

paul1598419

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You might have better luck using a buck driver instead and using two batteries. A boost driver is going to pull a lot of current to power that diode.
 

Alaskan

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Thought I'd add this power testing data to the thread, its resolution is very high, you might need to save it as a file and then resize on your monitor to see the curves on its chart, it overflows my notebook screen by a huge amount:

 
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Lifetime17

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Hi
That data comes in handy buddy
We don’t need to run them to hard to get over 1W +
Rich:)C3805A68-9529-4B34-AFE1-1A2FA51BC9EF.jpeg1CEECB1E-6B58-466A-8CDE-6EE3DE27E087.jpeg
 

Alaskan

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I'm no expert, but these are my impressions:

The divergence on these I'm hearing reported is awesome for a multimode diode, I am thinking it is due to the very short wavelength as well as the collimation lens performing better at the short wavelength too. Multimode IR wavelength laser diodes are on the other end of the stick, longer wavelength, longer cavities, poor lens performance and terrible divergence.
 
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