Laser Beam Expander Calculator: Determine Magnification, Output Diameter & Divergence

Laser Beam Expander Calculations

Magnification (M)
Output Beam Diameter (mm)

Optimize your laser systems with our Laser Beam Expander Calculator. Easily determine the magnification, output beam diameter, and output divergence of your laser beam expander. Essential for precise optical design and applications requiring specific beam characteristics.

Formula:

The Laser Beam Expander Calculator utilizes the following fundamental optical formulas to determine key parameters:

  • Magnification (M): If Din (Input Beam Diameter) and Dout (Output Beam Diameter) are known, then M = Dout / Din
  • Output Beam Diameter (Dout): If Din and M (Magnification) are known, then Dout = M × Din
  • Output Divergence (θout): If θin (Input Divergence) and M are known, then θout = θin / M

Where:

  • Din = Input Beam Diameter (mm)
  • Dout = Output Beam Diameter (mm)
  • θin = Input Divergence (mrad)
  • θout = Output Divergence (mrad)
  • M = Magnification (dimensionless)

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