Anamorphic beam-shaping optics 5AN

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

5AN-1.6

5AN-2-V

5AN-2.5

5AN-3

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: 6.5 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 Factor	Wavelength Range
5AN-1.6-05	0.63	600 nm - 1020 nm
5AN-2-35	0.5	390 nm - 620 nm
5AN-2-05	0.5	600 nm - 1020 nm
5AN-2-08	0.5	980 nm - 1550 nm
5AN-2.5-05	0.4	600 nm - 1020 nm
5AN-2.5-08	0.4	980 nm - 1550 nm
5AN-3-35	0.33	390 nm - 540 nm
5AN-3-05	0.33	600 nm - 1020 nm
5AN-3-08	0.33	980 nm - 1550 nm
5AN-3-19	0.33	1500 nm - 2100 nm

Technotes

Downloads

Article_AnamorphicOptics.pdf (Technote)

This downloads section only includes general downloads for the complete series.
Please access the individual product pages (using the product configurator, the product list, order options or the search button if you have a complete order code). Here you will find specific downloads including technical drawings or stepfiles.

Accessories

50HD-15

Hex key WS 1.5

60EX-5

Eccentric key with a stroke of ± 1.0 mm.

9D-12

Screwdriver WS 1.2

19.5AM25-L

Adapter for 60SMS Laser Beam Couplers Outer diameter Ø 25/28 mm

Overview

Lens Code	A7.5	A8	A11	A15	A18	M18	M20	M25	M30	M35	M40	M50	M60
Focal length f'	7.5	8.0	11.0	15.3	18.4	18.4	20.0	25.0	30.0	35.0	40.0	50.0	60.0
Numerical Apperture NA	0.3	0.31	0.25	0.16	0.15	0.18	0.17	0.23	0.19	0.16	0.21	0.24	0.14
Clear apert. max. [mm]	4.5	4.93	5.5	5	5.5	6.6	6.8	11.4	11.4	11.5	17	24	17
Correction - achrom.								X	X	X	X	X
350 - 700 nm	01		01	01	01
390 - 670 nm													33
400 - 700 nm								01	01			01
420 - 700 nm										26	26
450 - 700 nm								04	04		04
600 - 1050 nm	02			02
600 - 1100 nm			02		02
630 - 980 nm													10
630 - 1080 nm							10				54
650 - 1050 nm								02	02
650 - 1150 nm		07
750 - 1550 nm									37	37
980 - 1550 nm						08	08						08
1050 - 1650 nm			03
1050 - 1550 nm	03			03	03
1050 - 1620 nm								03
Lens Code	A7.5	A8	A11	A15	A18	M18	M20	M25	M30	M35	M40	M50	M60
Focal length f'	7.5	8.0	11.0	15.3	18.4	18.4	20.0	25.0	30.0	35.0	40.0	50.0	60.0
Numerical Apperture NA	0.3	0.31	0.25	0.16	0.15	0.18	0.17	0.23	0.19	0.16	0.21	0.24	0.14
Clear apert. max. [mm]	4.5	4.93	5.5	5	5.5	6.6	6.8	11.4	11.4	11.5	17	24	17
Correction - achrom.								X	X	X	X	X