Powell Lens Equations for Gaussian to Flat Top Beam Conversion

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Discussion Overview

The discussion centers around the conversion of a Gaussian beam into a flat top beam using Powell lenses, focusing on the equations that relate the input beam diameter, output beam diameter, wavelength of light, and the fan angle of the lens. Participants explore theoretical and practical aspects of this optical conversion process.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • One participant seeks equations connecting various parameters of the Powell lens for their project on beam conversion.
  • Another participant shares a thesis that discusses Powell lenses, suggesting it contains relevant equations and simulations.
  • A participant mentions finding a relation from a patented document but does not specify the details of this relation.
  • One participant suggests using ZEMAX optical studio software for simulating the Powell lens and requests assistance with the simulation process.
  • A reply recommends posting in the ZEMAX General Discussion Forum for more specific guidance on simulating a Powell lens.
  • Another participant suggests using CAD software to design the lens before importing it into ZEMAX, indicating a potential method for simulation.

Areas of Agreement / Disagreement

Participants generally express interest in the topic and share resources, but there is no consensus on the specific equations or methods for simulating the Powell lens in ZEMAX. Multiple approaches and suggestions are presented without agreement on a single method.

Contextual Notes

Participants reference various resources and software for simulation but do not provide a complete set of equations or a definitive method for the conversion process. The discussion reflects a range of experiences and knowledge levels regarding Powell lenses and optical simulation.

Who May Find This Useful

Students and researchers working on optical engineering projects, particularly those interested in beam shaping and simulation techniques using optical software.

sgn
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I am a Post graduation student and I am doing a project on the conversion of a Gaussian beam into a flat top beam using optical components. I have found that the best component to do the same is a Powell lens. I would like to know more about the equations connecting the input beam diameter, output beam diameter, wavelength of the light and the fan angle of a Powell lens.
 
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I don't know much about Powel Lenses, but i found this thesis discussing this kind of lenses, there are a few equations and simulations aswell.

http://goo.gl/TdtMLt

Also, you can download the EDU version of OSLO optical modeling software and make a Powell lens in it and experiment how they work.

http://www.lambdares.com/oslo-university-program
 
Thank you for your Reply.
I have already read the article but couldn't"find the relation from this one.
Still I am happy to tell you that I have got the relation from a Patented document.
 
sgn said:
I am a Post graduation student and I am doing a project on the conversion of a Gaussian beam into a flat top beam using optical components. I have found that the best component to do the same is a Powell lens. I would like to know more about the equations connecting the input beam diameter, output beam diameter, wavelength of the light and the fan angle of a Powell lens.

Google is your friend:

http://www.laserlineoptics.com/powell_primer.html
 
Now that I have found the relation and working of the Powell lens, I would like to simulate it using ZEMAX optic studio software.
Can anyone please help me with the steps to be carried out in ZEMAX to generate a Powell lens and its properties.
 
You should post a thread at the Zemax General Discussion Forum: http://forum.zemax.com/Forum27.aspx

I don't know any simple method to simulate a powell lens in Zemax. You could try the Part Designer in Zemax to draw a Powell lens, or use a solid modelling CAD software (AutoCAD, Inventor, SolidEdge, SolidWorks etc.) to draw it, and then import it to Zemax.
 

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