Top Hat

Osela’s Top Hat Module efficiently transforms a freespace laser beam or laser beam from a fiber into a uniform slow varying profile with no high frequency noise.

SKU: Top Hat Category: Tag:


Highlights at a glance:

  • Laser beam size adaptable up to ±20%
  • Compensates for input beam tolerances
  • Refractive, efficiency >97%
  • Achromatic
  • Free space or fiber coupled
  • Suitable for custom specifications
 Input beam size  0.5 to 4.0mm  At 1/e2
 Input beam size adaptability  ±20%  From selected beam size
 Operating wavelength  250 to 1300nm  AR coating needs to be considered
 Top Hat size constant (K)  0.001 to 0.6
 Cv Uniformity  <1% for fiber version
<2% for free space
 TEM00 beam
 Contained energy  >70%  Over the region of interest
 Efficiency  >95%  <97% of diverging TH
 Glass material  Fused silica  Other material upon demand
 Imaging lens  14, 20 30, 40 60, 75, 80 or 100mm  Other focal lengths upon demand