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Old 01-24-2010, 03:21 PM #1
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Question Laser strenth?

when a laser description says 100mW of 532nm what do each of these mean?


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Old 01-24-2010, 03:31 PM #2
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Default Re: Laser strenth?

somebody can correct me if I'm wrong.
But 100mW (milliwatts) is the amount of current running through the diode. Where as 532nm (nanometres) is the wavelength of the emitted laser beam.
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Old 01-24-2010, 04:03 PM #3
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Default Re: Laser strenth?

532nm is the wavelength in nanometers (532nm = Green, 405nm violet/UV BluRay, ~650nm Reds, 808nm IR/dim red visible).
But 100mW is the output power in light as measured by a Laser Power Meter (LPM). The current is expressed in mA. Voltage varies by the wavelength & temperature of the diode. And although one could use mW for the total input power (watts=volts×amps) no one ever does.
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Old 01-24-2010, 04:25 PM #4
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Default Re: Laser strenth?

Please read this: Basic FAQ's... Read before posting!


It answers ALL those types of questions, and saves you and everyone else a lot of time. As has been said many times, these questions have already been answered, if you'll read first.
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Old 01-24-2010, 04:48 PM #5
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Default Re: Laser strenth?

Quote:
Originally Posted by roosl View Post
Please read this: Basic FAQ's... Read before posting!


It answers ALL those types of questions, and saves you and everyone else a lot of time. As has been said many times, these questions have already been answered, if you'll read first.
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Old 01-24-2010, 05:30 PM #6
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Default Re: Laser strenth?

I relised that I got the mW and mA mixed up about 5 minutes ago :P but I was wrong on the matter anyways. I was going to say that mW would've been the power consumed via the diode. not sure if it would've still been right. :P
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Old 01-24-2010, 06:19 PM #7
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Default Re: Laser strenth?

Quote:
Originally Posted by roosl View Post
Please read this: Basic FAQ's... Read before posting!


It answers ALL those types of questions, and saves you and everyone else a lot of time. As has been said many times, these questions have already been answered, if you'll read first.
i read that, and what i meant by the question was what oes it mean for the power of the laser
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Old 01-24-2010, 06:37 PM #8
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Default Re: Laser strenth?

If I understand correctly, what your asking is what happens if a laser is more powerful? And what do different powers mean?

If that is what you mean? Then the greater the power, the brighter the beam will be compared to a lower powered laser of the same wavelength and it will also allow the laser to burn or melt things quicker.

Remember though that green will always be brighter than all other colours, and red and violet will always be harder to see.

You could have answered that yourself with a bit of reading,

Also, "strenth" is spelt S-T-R-E-G-N-T-H.
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Old 01-24-2010, 08:01 PM #9
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Lightbulb Re: Laser strenth?

Quote:
Originally Posted by Asherz View Post
Also, "strenth" is spelt S-T-R-E-G-N-T-H.
I always thought it was "S-T-R-E-N-G-T-H"
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