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Anamorphic beam-shaping optics 5AN

Transforms a collimated laser beam with elliptical cross section into a circular beam or vice versa

5AN-2-V
5AN-2.5
5AN-3-V
Representative product images. Individual product images are found on the individual product pages.

Features

Anamorphic optics act one-dimensionally on the elliptical profile of the colli­mated beam.
  • Radially symmetric output beam achieved by down scaling of the longer ­elliptical axis (beam-shaping factor 0.33 – 0.63)
  • Integrated astigmatism correction
  • No lateral beam shift or beam deviation as with anamorphic prism pairs
  • Various optics UV-IR
  • Clear aperture: 5 mm
  • Diffraction-limited optics pair
  • Ø 19.5 mm system mount: Full integration with ­­­multi­cubeTM system / 30 mm cage system, collimators and adapters


Description

A circular beam profile may be preferred over the elliptical profile usually provided by laser diodes or by tapered amplifiers. Anamorphic optics act one-dimensionally on the elliptical profile of the colli­mated beam. They can be used to 
  • Adjust the larger beam diameter to the dimension of the smaller one, producing a radially symmetric beam 
  • Adjust the smaller beam diameter to the dimension of the larger one, producing a radially symmetric beam 
  • Transform a circular beam into an elliptical one 
  • Enlarge one elliptical axis to produce a beam with a higher axis ratio
The Anamorphic Beam-shaping ­Optics type 5AN are cylinder lens systems and, therefore, can be additionally used to correct the astigmatic difference ∆As of the laser diode or tapered amplifier through a refocusing of the optical system. Coupling efficiencies to single-mode fibers of 80% or more are possible when using anamorphic beam-shaping optics (depending on the beam characteristics of the laser diode or tapered amplifier).

Form Factor
The anamorphic effect is described by the form factor F, which ­indicates the relative diameter change of the parallel beam.
The target value is calculated from the ratio of the beam diameters Ø and Ø|| of the ­collimated beam.

Order Options

Order Code  Form FactorWavelength Range
5AN-1.6-V-050.63  600 nm - 1020 nm
5AN-2-V-350.5  390 nm -   620 nm
5AN-2-V-050.5  980 nm - 1550 nm
5AN-2-V-080.5  600 nm - 1020 nm
5AN-2.5-V-050.4  980 nm - 1550 nm
5AN-2.5-V-080.4  600 nm - 1020 nm
5AN-3-V-350.33  390 nm -   540 nm
5AN-3-V-050.33  600 nm - 1020 nm
5AN-3-V-080.33  980 nm - 1550 nm
5AN-3-V-190.331500 nm - 2100 nm

Accessories

Hex key WS 1.5
Eccentric key with a stroke of ± 1.0 mm.
Screwdriver WS 1.2
Adapter for 60SMS Laser Beam Couplers Outer diameter Ø 25/28 mm