Old 03-13-2017, 01:41 AM #1
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Default New Power Supply for my Laser

I am kinda new to the whole laser thing so i might get a lot wrong.

A couple months back I was in china and I bought a 450nm laser. I have been looking to increase the power to meet the max power output on the label 20w. I had looked online quite a bit and havent found much. The box has a label "YX-B008" on it.

Can i trust the label on the laser? it claims 20w max output, but that seems like a lot of power for a diode.

Is there a way to reliably test for the max voltage and amperage without messing up the diode?

Thanks for any help


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Old 03-13-2017, 03:16 AM #2
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Default Re: New Power Supply for my Laser

Quote:
Originally Posted by SireHate View Post
I am kinda new to the whole laser thing so i might get a lot wrong.

A couple months back I was in china and I bought a 450nm laser. I have been looking to increase the power to meet the max power output on the label 20w. I had looked online quite a bit and havent found much. The box has a label "YX-B008" on it.

Can i trust the label on the laser? it claims 20w max output, but that seems like a lot of power for a diode.

Is there a way to reliably test for the max voltage and amperage without messing up the diode?

Thanks for any help
So are you just trolling--the nickname screams troll?

Assuming you are not a troll :

That laser is what it is --- google "YX-B008"

There is no such thing as a 20W 450nm hand held laser and no other power source will increase the output.

Your lucky if is actually 1W output.

Last edited by Encap; 03-13-2017 at 04:11 AM.
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Old 03-14-2017, 12:43 AM #3
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Default Re: New Power Supply for my Laser

Is there any way that i can test the maximum voltage and amperage of a laser diode without destroying it?
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Old 03-14-2017, 01:13 AM #4
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Default Re: New Power Supply for my Laser

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Originally Posted by SireHate View Post
Is there any way that i can test the maximum voltage and amperage of a laser diode without destroying it?
Why? What do you want to know?

A laser diode is not powered directly by a battery ---a laser diode needs a driver circuit to limit the current--a laser diode by itself just demands more and more current until it is destroyed.

Laser diodes are powered by a driver circuit not directly from a battery.
Don't attempt to connect the diode directly to a fixed voltage source like a battery. You must use a "constant current" power source like a current limiting driver or variable current power supply.

A laser diode is a current-driven device which is should not to be driven by a voltage source.
To operate laser diodes correctly , a proper electrical driving mechanism has to be employed. A proper laser diode driver must act as an accurate constant current source with good transient protection and very low noise.

Have a look here at Laser Diodes: Laser diode operation 101: A user’s guide: http://www.laserfocusworld.com/artic...r-s-guide.html

Beyond that google "powering a laser diode"

Last edited by Encap; 03-14-2017 at 04:11 AM.
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