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Old 12-05-2016, 02:56 PM #1
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Default Beam Profile of the PL-E Pro 465nm laser?

What shape is the beam profile of this laser? If you know let me know. I did look via the web before asking.



Last edited by steve001; 12-05-2016 at 02:57 PM.
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Old 12-05-2016, 04:15 PM #2
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Rectangular like every other MM blue diode.
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Old 12-05-2016, 04:26 PM #3
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

As dden said, rectangular. Same as all the MM blue diodes.

I'd imagine the 465nm PL-E (3.5W) is using the NUBM07E or something similar.

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Last edited by diachi; 12-05-2016 at 04:27 PM.
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Old 12-05-2016, 04:40 PM #4
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Is that the profile of a raw diode? Or after it has passed through the collimation lens?
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Old 12-05-2016, 04:46 PM #5
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Quote:
Originally Posted by steve001 View Post
Is that the profile of a raw diode? Or after it has passed through the collimation lens?

That's 28ft down range, after a collimation lens. Uncollimated diodes don't give you a narrow line like that, you get a large "blob".

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Last edited by diachi; 12-05-2016 at 04:48 PM.
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Old 12-06-2016, 01:48 PM #6
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Quote:
Originally Posted by diachi View Post
That's 28ft down range, after a collimation lens. Uncollimated diodes don't give you a narrow line like that, you get a large "blob".

A line isn't attractive, folks prefer a dot or semi-dot, well I do at least. I've done a bit more searching and came across this vid showing a homemade laser with an acceptable beam profile. https://www.youtube.com/watch?v=puZFaIDHG2I Now if I can determine if the PL-E Pro has such a profile that would be acceptable. Maybe I'll email JL for an answer.

Last edited by steve001; 12-06-2016 at 01:54 PM.
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Old 12-06-2016, 05:00 PM #7
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Quote:
Originally Posted by steve001 View Post
A line isn't attractive, folks prefer a dot or semi-dot, well I do at least. I've done a bit more searching and came across this vid showing a homemade laser with an acceptable beam profile. https://www.youtube.com/watch?v=puZFaIDHG2I Now if I can determine if the PL-E Pro has such a profile that would be acceptable. Maybe I'll email JL for an answer.
Maybe using a 3 element in that build, looks like the beam is being clipped at the edges to me. Still a nasty beam by my standards.

Here's another showing what to expect:

https://www.youtube.com/watch?v=kS7XTmdSmNU

Maybe RedCowboy will chime in, he's usually got some good example pictures of beam profiles.
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488nm | Spectra Physics 163 Argon | ~30mW Metered
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532nm | Gearbest 303 Pointer | 50mW Metered
532nm | Gearbest JD.850 Pointer | "5mW" | Needs batteries...
633nm | HeNe | 6mW
650nm | Sanwu Laser Pocket Series | 200mW Metered
808nm | Melles Griot 532nm Lab Unit | No Crystals >10W | X2
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Old 12-06-2016, 05:19 PM #8
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Default Re: Beam Profile of the PL-E Pro 465nm laser?

Quote:
Originally Posted by diachi View Post
Maybe using a 3 element in that build, looks like the beam is being clipped at the edges to me. Still a nasty beam by my standards.

Here's another showing what to expect:

https://www.youtube.com/watch?v=kS7XTmdSmNU

Maybe RedCowboy will chime in, he's usually got some good example pictures of beam profiles.
At first I didn't notice the beam is being clipped at the long axis. It's such a nice blue, but without beam correcting optics I don't think it's worth buying.
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