Beam expansion and beam shaping


From the first aspheric BeamExpander to a unique system

BeamBoxasphericon BeamTuning means beam expansion and beam shaping at the highest level.

The core of this product group is the a|BeamExpander. For the first time, a beam expansion product consists of only one optical element – an aspheric lens. The BeamExpander works as a single element as well as in cascades with up to five further elements completely diffraction-limited.

Discover the world‘s first aspheric and diffraction-limited beam expansion system as well as brand new beam shaping components. The product range includes beam expanders of various wavelengths (355, 532, 632, 780, 1064 nm) and magnification stages, fiber collimators, elements for using beam expanders with other than their design wavelengths, beam shapers as well as intra- and cross-system adapters.

All laser beam shaping and expansion elements from asphericon can be combined in an a|BeamBox according to your specific requirements. An intelligent mounting concept saves time-consuming adjustments, ensures flexibility and precision.

Combine a|BeamExpander, a|Waveλdapt, the fiber collimation device a|AspheriColl as well as a|Adapters (intra-system and cross-system) and MountedOptics flexibly for your individual application. Regardless whether you need beam expansion or beam shaping components, choose and combine your individual a|BeamBox, e.g. for applications in the laboratory, in the field of metrology or for laser material processing. Individual combination are possible. Please contact us!

NEW: a|TopShape & a|AiryShape

The asphericon a|TopShape and a|AiryShape are innovative beam shapers and the latest additions to our product family. These high-quality elements transform Gaussian laser beams into collimated Top-Hat beams respectively Top-Hat foci. Take advantage of the easy handling and discover unlimited combinations of a|TopShape and a|AiryShape with other BeamTuning elements. Both beam shapers are also available in various combinations as a|BeamBox.

Order now or let our specialists provide you with detailed advice!

 Conveniently use the BeamExpander Configurator to get your needed combination of beam expanders.



  • Design wavelengths [nm]: 355, 532, 632, 780, 1064
  • Wavelength range [nm]: 355, 500 – 1600
  • Expansion: up to 32x (230 intermediate stages possible)
  • Quality: Diffraction-limited wavefront
  • Easy assembly of components through metric fine thread

Beam Expander
Flyer BeamTuning
Info sheet a|BeamExpander UV


  • Matching a|Waveλdapt for each a|BeamExpander
  • Adjustment to all wavelengths [from 500 nm to 1600 nm]
  • Can be combined with up to five BeamExpanders – guaranteed to be diffraction-limited
  • Compensation of divergent incoming beams up to 1 mrad


Flyer BeamTuning


Connect the a|BeamExpanders conveniently and easily with the matching a|Adapters intra system for your required beam expansion or beam reduction.
The a|Adapter cross-system (C-Mount, SM1, 1.2″ circumference) ensure a high level of compatibility compared with other optical systems – without additional adjustment.
Please find a detailed description in the manual.

Beam Expander Adapter
Manual BeamExpander


  • Flexible choice of output beam diameter in combination with a|BeamExpanders
  • Easy mounting to a|BeamExpanders via metric fine thread
  • Completely diffraction-limited performance (Strehl > 0.95) when used with FC/PC patch fibers
  • Optimized for a wavelength range from 500 nm to 1600 nm

Data sheet a|AspheriColl


  • Transforms collimated Gaussian into collimated Top-Hat beams
  • Unbeatable optical performance (Strehl > 0.95)
  • Large spectral range (350 to 1600 nm)
  • Scalable input and output beam in combination with a|BeamExpander

Flyer BeamTuning


  • Generates various beam profiles (e.g., Top-Hat, Donut)
  • Optimized for wavelengths 300 to 1600 nm
  • Easy integration into existing set-ups
  • Flexible adaption of input and output beam diameter with BeamTuning elements


Flyer BeamTuning

a|BeamBox Essential

  • Combines up to eight a|BeamExpanders with an a|AspheriColl, a|Waveλdapt and matching a|Adapters
  • Optimized for wavelengths 355, 532, 632, 780 and 1064 nm
  • Quality: diffraction-limited wavefront
  • Multi element sets with attractive cost savings

BeamBox Essential
Flyer BeamTuning

a|BeamBox TopShape

  • a|BeamBox to generate collimated Top-Hat beams
  • Combines up to five a|BeamExpanders, a|TopShape and a|AspheriColl with matching a|Adapters and MountedOptics
  • Design wavelengths: 355 nm, 632 nm and 1064 nm
  • Application: metrology, microscopy


Flyer BeamTuning

a|BeamBox AiryShape

  • a|BeamBox for generating different beam profiles (e.g., Top-Hat, Donut)
  • Combines up to six a|BeamExpanders, a|AiryShape, and a|AspheriColl with matching a|Adapters and a|MountedAspheres
  • Design wavelengths: 355, 532, 632, 780 and 1064 nm
  • Application: Material processing

Flyer BeamTuning

a|BeamBox YourChoice

Combine a|BeamExpander, a|Waveλdapt, a|TopShape, a|AiryShape and a|AspheriColl with a|Adapters (intra-system and cross-system) and MountedOptics individually to suit your requirements. Almost every combination is possible! Please contact us.


Flyer BeamTuning