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Hi



I want to model a Gaussian beam source in SQ mode.


The laser specs are,



- wavelength: 532 nm


- 2theta: 0.7 mrad (FW)(1/e^2)


- 2w0: 1 mm (FW)(1/e^2) 


- w0 position: laser head output position 


- M2 < 1.1 



In this situation, the beam waist cannot be a point source.


Then, what should I set(aperture type, object position, etc.. ) for the modeling in the SQ mode?


 



Thanks in advance

Hello Jeeyoung Lee,



I would recommend using the Paraxial Gaussian beam calculation to get an idea of the Rayleigh length:



So if you are within the Rayleigh length in your system, a collimated beam can be a good approximation.



Then it depends what you need to study in your system. For further information, check our learning path: https://my.zemax.com/learning-paths/modeling-laser-beam-propagation-in-opticstudio/



Do not hesitate if you have any further questions.



Sandrine



 


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