Lasers do not typically have a uniform beam profile across the
entire area of their output. Beam shapers are typically used to convert
a gaussian beam intensity profile to a uniform "top hat" shape.
These are often the most complex optics to design but MEMS Optical's gray
scale lithography allows for the creation of extremely high performance
beam shapers, often with uniformity within 2% with virtually no speckle
Beam shapers are usually diffractives and
work best with a single mode beam but, if a multimode beam is used, a
refractive beam integrator type can be made.
The images here are actual measurements
taken from a beam before and after it has passed through a MEMS
Optical beam shaper.
<-- Gaussian - Beam intensity
profile before shaping
Beam intensity profile after shaping
- Laser Machining
- Free space communications
- Lithography equipment
to our main products page. Also visit MEMS Optical
us with your questions.