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Old 08-13-2014, 09:23 PM #1
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Default 445nm laser output power question

Recently i finished my A-140 laser project, i am driving it at 1.25 amps, according to the chart the seller provided it says that at that current the diode should be putting out about 1.3 watts, i am using an aixiz 3 element glass lens, about how much power could this thing be putting out? i do not have a laser power meter to test it


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Old 08-13-2014, 10:02 PM #2
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Default Re: 445nm laser output power question

Quote:
Originally Posted by twenglish1 View Post
Recently i finished my A-140 laser project, i am driving it at 1.25 amps, according to the chart the seller provided it says that at that current the diode should be putting out about 1.3 watts, i am using an aixiz 3 element glass lens, about how much power could this thing be putting out? i do not have a laser power meter to test it
The A140 is a little less powerful than the M140, with a 3 element lens its probably more like 1W. The chart the seller provided may have been done with a G2 or G1 lens, they will boost your power about 30% over a 3 element lens, however those diodes can vary quite a bit so you may have a better one or one below average. You can't tell without testing with an LPM.

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Old 08-13-2014, 10:05 PM #3
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Default Re: 445nm laser output power question

That's about what I was thinking, I have a m140 on the way, driven at 1.8 amps should output about 2 watts as I was told, does that sound accurate?
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Old 08-13-2014, 10:20 PM #4
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Default Re: 445nm laser output power question

Yes that should be close.

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Old 08-14-2014, 01:58 AM #5
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Default Re: 445nm laser output power question

My first laser build is an M140 with a 1.8A X-drive and works like a charm. I've measured 2.285 watts of optical power with my friend's LPM. It burns, it cuts, it's bright as heck. Good luck on your build man

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Old 08-14-2014, 02:13 AM #6
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Default Re: 445nm laser output power question

My first was my A140 with a 1.25 amp buck driver, im impressed with the results, just looking for something a little more powerful now
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Old 08-14-2014, 04:48 AM #7
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Default Re: 445nm laser output power question

Be sure to let us all know how it turns out!
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