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Fac/sac 40 watt burning

ducatidragon916

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May 17, 2020
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So I had to create another thread as I could not reply on my other thread maybe it was a glitch on this page or what?
The lenses is set on the die and I am able to get a burn as you can see on the image. This burn happens when I am almost on top of the lens combo and not when I at a distance. Somehow the lens doesn’t help with dispersion. I will be obtaining a aspheric lens to check and see if I can improve the focus of the beam to increase the power density etc.
 

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So I had to create another thread as I could not reply on my other thread maybe it was a glitch on this page or what?
The lenses is set on the die and I am able to get a burn as you can see on the image. This burn happens when I am almost on top of the lens combo and not when I at a distance. Somehow the lens doesn’t help with dispersion. I will be obtaining a aspheric lens to check and see if I can improve the focus of the beam to increase the power density etc.
 
As you can see in the image I attached the lens combo to the 40watt die and the output of a width wise configuration. Should I consider glueing down an array of fiber optic fibers cleaved so I can direct the beam with more control? If I do this an aspheric lens would be eliminated as well
 

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Actually it is a combination lens with a sac lens at the other end etc. So what diameter type of glass rod would you recommend or is there a calculation based on several factors?
 


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