MEMS Optical - Beam Shapers

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MEMS Optical's Products
Gray Scale Technology	Beam Splitters
IR Microoptics	Laser Diode Corrector
Multi-function Optics	Fine Pitch Gratings
Microlens Arrays	Plastic Optics & Plastic Molds
Collimated Fiber Arrays	Stock Optics
Beam Shapers	Scanning Two Axis Tilt Mirrors
Diffusers

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 present.

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
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

Uniform -->
Beam intensity profile after shaping

Applications

Laser Machining
Free space communications
Lithography equipment

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