home components Beam delivery devices Variable beam expanders VEX and reducers VRE

Variable beam expanders VEX and reducers VRE

Main features

Highest beam pointing stability (<0,5 mrad)

Fused silica optical elements

Grease free mechanical design

Sliding lens design

Diffraction limited performance for all magnifications

Application examples

Laser micromachining

Research

Request custom View stock

Description
Video
Specifications
Downloads

4Lasers introduces variable manual beam expanders VEX series used to increase or decrease the laser beam diameter. Standard or custom-made laser beam expanders for the UV, visible, and NIR spectral ranges feature a unique mechanical sliding-lens design, ensuring high pointing stability and minimal dimensions.

These variable magnification (zoom) beam expanders are designed for the required wavelength and each type of our beam expanders have divergence adjustability.

All-optical elements of beam expanders are made of fused silica with high LIDT coatings and provide stable and reliable performance even when using them with high power lasers. Large input and output apertures allow the optical beam expanders to produce diffraction-limited expanded (or reduced) beams for a wide range of input beams.

Variable beam expanders and reducers specifications
Adjustment	Manual
Divergence	Adjustable
Pointing stability	<0,5 mrad, <1 mrad (VEX15-HP)
Lens material	UVFS
Transmission	>97%, >95% (VEX15-HP)
LIDT	3 J/cm² (10 ns @ 355nm) 5 J/cm² (10 ns @ 532 nm) 10 J/cm² (10 ns @ 1064 nm)

Drawings:

VEX13v4.1

VEX15-HPv1

Adapter (ADPT-50,8E-38,1I v0)

VEX13 in adapter (VEX13v4-AD)

CAD:

Adjustment graph:

VEX13 adjustment graph

VEX15-HP adjustment graph v2.1

VEX18 adjustment graph

Order your item

Item model Expansion Design wavelength Clear input aperture Clear output aperture Recommended max input beam diameter (1/e2) Design Dimensions Mounting options SKU PRICE Download QUANTITY

VEX18

1.3x - 7.5x continuous

257- 266 nm

11,5 mm

40 mm

⌀7 mm (1x) - ⌀5,3 mm (5x) - ⌀3,3 mm (8x)

Standard

⌀53 x 203 mm

SM2, ⌀50.8 mm [2’]

18932

1790 €

VRE13

0.33x - 1.0x continuous

1030-1064nm

22 mm

11 mm

⌀15 mm (0,33x) - ⌀7 mm (1x)

Standard

⌀42 x 110 mm

M30x1 external, SM1 internal, ⌀38.1 mm [1.5”], T-mount (M42x0.75)

20144

1180 €

VEX15-HP

1.0x - 5.0x continuous

1030-1064 nm

11 mm

24 mm

⌀7 mm (1x) - ⌀3,3 mm (5x)

High power

⌀58 x 250 mm

T-mount, SM2, ⌀50,8 mm [2”]

31303

2100 €

VEX15-HP

1.0x - 5.0x continuous

515-532 nm

11 mm

24 mm

⌀7 mm (1x) - ⌀3,3 mm (5x)

High power

⌀58 x 250 mm

T-mount, SM2, ⌀50,8 mm [2”]

31304

2100 €

VEX15-HP

1.0x - 5.0x continuous

343-355 nm

11 mm

24 mm

⌀7 mm (1x) - ⌀3,3 mm (5x)

High power

⌀58 x 250 mm

T-mount, SM2, ⌀50,8 mm [2”]

31305

2200 €

VEX13

1.0x - 3.0x continuous

343-355 nm

11 mm

23,5 mm

⌀7 mm (1x) - ⌀5 mm (3x)

Standard

⌀42 x 110 mm

M30x1 external, SM1 internal, ⌀38.1 mm [1.5”], T-mount (M42x0.75)

4357

1180 €

VEX18

1.0x - 8.0x continuous

343-355 nm

11 mm

40 mm

⌀7 mm (1x) - ⌀5,3 mm (5x) - ⌀3,3 mm (8x)

Standard

⌀53 x 203 mm

SM2, ⌀50.8 mm [2’]

6455

1390 €

VEX18

1.0x - 8.0x continuous

515-532 + 343-355 nm

11 mm

40 mm

⌀7 mm (1x) - ⌀5,3 mm (5x) - ⌀3,3 mm (8x)

Standard

⌀53 x 203 mm

SM2, ⌀50.8 mm [2’]

6456

1390 €

VEX18

1.0x - 8.0x continuous

515-532 nm

11 mm

40 mm

⌀7 mm (1x) - ⌀5,3 mm (5x) - ⌀3,3 mm (8x)

Standard

⌀53 x 203 mm

SM2, ⌀50.8 mm [2’]

6725

1190 €

VEX13

1.0x - 3.0x continuous

1030-1064 nm

11 mm

23,5 mm

⌀7 mm (1x) - ⌀5 mm (3x)

Standard

⌀42 x 110 mm

M30x1 external, SM1 internal, ⌀38.1 mm [1.5”], T-mount (M42x0.75)

6985

980 €

VEX13

1.0x - 3.0x continuous

515-532 nm

11 mm

23,5 mm

⌀7 mm (1x) - ⌀5 mm (3x)

Standard

⌀42 x 110 mm

M30x1 external, SM1 internal, ⌀38.1 mm [1.5”], T-mount (M42x0.75)

6987

980 €

VEX13

1.0x - 3.0x continuous

1030-1064 + 515-532 nm

11 mm

23,5 mm

⌀7 mm (1x) - ⌀5 mm (3x)

Standard

⌀42 x 110 mm

M30x1 external, SM1 internal, ⌀38.1 mm [1.5”], T-mount (M42x0.75)

6990

1180 €

VEX13

1.0x - 3.0x continuous

515-532 + 343-355 nm

11 mm

23,5 mm

⌀7 mm (1x) - ⌀5 mm (3x)

Standard

⌀42 x 110 mm

M30x1 external, SM1 internal, ⌀38.1 mm [1.5”], T-mount (M42x0.75)

6991

1180 €

VEX18

1.0x - 8.0x continuous

1030-1064 nm

11 mm

40 mm

⌀7 mm (1x) - ⌀5,3 mm (5x) - ⌀3,3 mm (8x)

Standard

⌀53 x 203 mm

SM2, ⌀50.8 mm [2’]

6992

1190 €

VEX18

1.0x - 8.0x continuous

1030-1064 + 515-532 nm

11 mm

40 mm

⌀7 mm (1x) - ⌀5,3 mm (5x) - ⌀3,3 mm (8x)

Standard

⌀53 x 203 mm

SM2, ⌀50.8 mm [2’]

6994

1390 €

VRE13

0.33x - 1.0x continuous

515-532 nm

22 mm

11 mm

⌀15 mm (0,33x) - ⌀7 mm (1x)

Standard

⌀42 x 110 mm

M30x1 external, SM1 internal, ⌀38.1 mm [1.5”], T-mount (M42x0.75)

6995

980 €

VRE13

0.33x - 1.0x continuous

343-355 nm

22 mm

11 mm

⌀15 mm (0,33x) - ⌀7 mm (1x)

Standard

⌀42 x 110 mm

M30x1 external, SM1 internal, ⌀38.1 mm [1.5”], T-mount (M42x0.75)

6997

1180 €

VRE13

0.33x - 1.0x continuous

1030-1064 + 515-532 nm

22 mm

11 mm

⌀15 mm (0,33x) - ⌀7 mm (1x)

Standard

⌀42 x 110 mm

M30x1 external, SM1 internal, ⌀38.1 mm [1.5”], T-mount (M42x0.75)

6999

1180 €

VRE13

0.33x - 1.0x continuous

515-532 + 343-355 nm

22 mm

11 mm

⌀15 mm (0,33x) - ⌀7 mm (1x)

Standard

⌀42 x 110 mm

M30x1 external, SM1 internal, ⌀38.1 mm [1.5”], T-mount (M42x0.75)

7000

1180 €

VEX15-HP

1.0x - 5.0x continuous

1030-1064 + 515-532 nm

11 mm

24 mm

⌀7 mm (1x) - ⌀3,3 mm (5x)

High power

⌀58 x 250 mm

T-mount, SM2, ⌀50,8 mm [2”]

9273

2200 €

VEX15-HP

1.0x - 5.0x continuous

515-532 + 343-355 nm

11 mm

24 mm

⌀7 mm (1x) - ⌀3,3 mm (5x)

High power

⌀58 x 250 mm

T-mount, SM2, ⌀50,8 mm [2”]

9279

2200 €

Show all

4Lasers

Compact motorized laser beam expanders MEX

UV-NIR laser beam visualizers