Innovation Photonics

Flat-Top Beam Expander

InnPho’s Flat-Top Beam Expanders convert a Gaussian laser beam input into an output that has a flat-top profile. The conversion is caused by an Engineered Diffuser™, manufactured by RPC Photonics, Inc.

Flat Top Beam Expander

Flat Top Beam Expander

  • Spectral Range: 350 nm to 2 μm
  • Cross section uniformity: ±5-10% (neglecting speckle)
  • Laser damage threshold: 20 J/cm2, 1054 nm, 1 ns pulse

Optimum performance of the apodizing element (Engineered Diffuser™) is achieved when the input beam diameter is 3-4 mm, using our GCE-9.

Part
Number
Description
ELG-10-λ Flat-Top Beam Expander, 10 mm dia collimated output
ELG-20-λ Flat-Top Beam Expander, 20 mm dia collimated output
ELG-45-λ Flat-Top Beam Expander, 45 mm dia collimated output
GCE-9 Flat-Top Converter element, mounted

λ: When ordering, specify wavelength for AR coatings.


Gaussian Compensating Plate

Gaussian Compensating Plate

GAUSSIAN COMPENSATING PLATE

Catalog
Number
Dimensions
WCG-25 1” dia x 1⁄4” thick
WCG-51 2” dia x 1⁄4” thick