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Beam Expander for Lasers

The most common beam expander is Galilean type which usually has one negative input lens and one positive output lens. The beam expansion ratio for a Gaussian beam depends not only on the specifications of the beam expander, but also on the laser beam parameters as well as the positions of the optical lenses.

Beam Expander -  1064/532/355/405/266nm

Nd:YAG (1064nm) BEX - Adjustable Series

Mounting Version for Beam Expander

Corresponding with Wavelength Technology's constant innovation and drive for excellence, they recently released their new beam expander mounting. This adjustable mount has been a widely accepted model that is able to compensate various degrees of input beam.Now with the new mount, the operation of adjusting the first lens is more convenient. The user only needs to turn the center part of the beam expander and the first lens will move accordingly along the optical axis with no rotation.

Advantages

This mount also has advantage as the first lens does not rotate in respect to the second lens. It also has been equipped with scale for the user to measure the distance of the lenses.

Part No. Magnification Input CA
(mm)
Output CA
(mm)
M1 Dia 1
(mm)
Dia 2
(mm)
L1
(mm)
L2
(mm)
BEX-1064-1X 1 15.5 23 M22x0.75 31 29 45.6 65.6
BEX-1064-1.2X 1.2 16 23 M22x0.75 29 29 50.46 54.93
BEX-1064-1.5X 1.5 15 22 M22x0.75 32 32 46.9 51.9
BEX-1064-1.5X1 1.5 15.5 23 M22x0.75 25 29 35.46 44.46
BET2X/1064 2 3 4 M24x0.5 26 M24x0.5 28 41
BEX-1064-2X 2 10 20 M22x0.75 26 26 28 42
BEX-1064-2X1 2 15 23 M22x0.75 29 31.5 31 45
BEX-1064-2.5X 2.5 10 23 M22x0.75 29 29 53 67
BEX-1064-2.5X1 2.5 10 23 M22x0.75 29 29 58.55 79.75
BET3X/1064 3 10 17 M24x0.5 26 26 45 58
BEX-1064-3X 3 10 20 M22x0.75 - 26 44.7 60
BEX-1064-3X1 3 10 33 M30x1 40 40 43 57
BEX-1064-3X3 3 10 23 M22x0.75 29 29 42 58
BEX-1064-4X 4 10 22 M22x0.75 29 29 64 81
BET5X/1064 5 10 23 M33x0.5 M33x0.5 M33x0.5 57 73.1
BEX-1064-5X 5 10 23 M22x0.75 29 29 55 72
BEX-1064-5X1 5 10 16 M16x0.75 20 20 42 56
BEX-1064-6A 6 6 13 M16x0.75 20 20 56.81 71.81
BEX-1064-6X 6 10 22 M22x0.75 29 29 54 70
BEX-1064-6X1 6 10.5 26 M22x0.75 32 32 79 89.39
BEX-1064-6X2 6 6 16 - 25 25 - 69.64
BEX-1064-7X 7 6 23 M22x0.75 29 29 60.43 76.43
BEX-1064-8X 8 10 22 M22x0.75 29 29 58 76
BEX-1064-10X 10 8 22 M22x0.75 29 29 52 70
BEX-1064-10X1 10 11 34 - 40 40 79 94.54
BEX-1064-10XI 10 8 22 M22x0.75 29 29 56 70
BEX-1064-12A 12 6 13 M16x0.75 20 20 64.81 79.81
BEX-1064-15X 15 7.5 28.0 M30x1 36 45 - 99.12
BEX-1064-20X 20 8.0 28.0 M22x0.75 45 45 76.27 91.27
BEX-1064-30X 30 6.0 38.0 M22x0.75 30 46 103.6 118.6
BEX-1064-40X 40 1.25 50.0 - 60 60 - 207.24
BEX-1064-5Z 5 10 32 M30x1 37.6 M43x0.5 77.6 84.6
BEX-1064-5Z1 5 10 32 M30x1 37.6 M43x0.5 77.6 84.6
BEX-1064-6Z1 6 10 26 M30x1 36 M43x0.5 57 72
BEX-1064-8Z 8 10 34 M30x1 36 M43x0.5 68 83
BEX-1064-10Z 10 11 34 M30x1 43 M43x0.5 80 95.9

1064nm Beam Expander (Custom)

Part No. Magnification Input CA (mm) Output CA (mm) Dia 1
(mm)
L1
(mm)
Dia 2
(mm)
L2
(mm)
BEX-1064-30X-100OP 30 10 100 M30X1 195 120  -
BEX-1064-40X-120OP 40 8 128 M30X1 140.53 153 188.77

1064-532 nm Beam Expander

Part No. Magnification Input CA
(mm)
Output CA (mm) Dia 1
(mm)
L1
(mm)
Dia 2
(mm)
L2
(mm)
BEX-1064--532-5X 5 6 18 M22X0.75   29  56

Green (532nm) Beam Expander Adjustable Series


Adjustable Tech Features
 
Part No. Magnification Input CA
(mm)
Output CA
(mm)
M1 Dia1
(mm)
Dia2
(mm)
L1
(mm)
L2
(mm)
BEX-532-2X 2 6 23 M22x0.75 30 30 83 67
BEX-532-2XA 2 13 23 M22x0.75 30 30 82.68 67.68
BEX-532-3X 3 6 23 M22x0.75 30 30 83 67
BEX-532-4X 4 6 23 M22x0.75 30 30 83 67
BEX-532-5X 5 8 24 M23x0.75 30 30 83.2 65.7
BEX-532-6X 6 6 23.6 M22x0.75 30 30 83 67
BEX-532-10X 10 6 23 M22x0.75 30 30 83 67
BEX-532-12X 12 7 24 M22x0.75 30 30 83 67
BEX-532-15X 15 6 32 M30x1 40 M43x0.5 85 67
BEX-532-18X 18 5 40 20.5mm 20.5 47 176.5 163
BEX-532-20X 20 6 38 M30x1 40 40 95.2 66.73
BEX-532-20X-Q 20 8 32 M22x0.75 - 45 92.26 75.26
BEX-532-30X 30 5 38 M22x0.75 30 46 108.72 123.72

405nm BEX - Adjusted Series

Part No. Magnification Input CA
(mm)
Output CA
(mm)
Dia1
(mm)
Dia2
(mm)
L1
(mm)
L2
(mm)
BEX-405-1.5X 1.5 6.0 30.0 - 46 85 -
BEX-405-2X 2 6.0 30.0 - 46 85 -
BEX-405-3X 3 6.0 30.0 - 46 85 -
BEX-405-5X 5 6.0 30.0 - 46 85 -
BEX-405-7X 7 4.2 30.0 - 46 85 -
BEX-405-10X 10 3.0 30.0 - 46 89 -
BEX-405-20X 20 1.5 30.0 - 46 95 -

UV (355nm) Beam Expander - Adjustable Series


Beam Expander Adjustable Tech Features
Part No. Magnification Input CA
(mm)
Output CA
(mm)
M1 M2 L1
(mm)
L2
(mm)
BEX-355-1.5X 1.5 7.0 24.0 M30×1 M43x0.5 48.1 76.5
BEX-355-2X 2 7.0 24.0 M30×1 M43x0.5 47.24 75.64
BEX-355-3X 3 7.0 24.0 M30×1 M43x0.5 48.93 77.33
BEX-355-4X 4 8.0 28.0 M30×1 M43x0.5 48.93 77.33
BEX-355-5X 5 8.0 28.0 M30×1 M43x0.5 - 71
BEX-355-7X 7 8.0 28.0 M30×1 M43x0.5 73.13 88.13
BEX-355-8X 8 8.0 28.0 M30×1 M43x0.5 70.0 84.0
BEX-355-10X 10 6.0 28.0 M30×1 M43x0.5 80.5 96.0
BEX-355-15X 15 6.0 28.0 M30×1 M43x0.5 - 95.0
BEX-355-20X 20 6.0 28.0 M30×1 M43x0.5 81.3 97.0

266nm BEX - Fixed Series

Click on highlighted part # below for datasheet

Part No. Magnification Input CA
(mm)
Output CA
(mm)
Dia1
(mm)
Dia2
(mm)
L2
(mm)
L1
(mm)
BEX-266-1.5X 1.5 8.0 24.0 30.0 30.0 46.2 63.7
BEX-266-2X 2 8.0 24.0 30.0 30.0 55.0 73.0
BEX-266-3X 3 10.0 23.0 30.0 30.0 38.2 68.7
BEX-266-5X 5 10.0 23.0 30.0 30.0 58.6 69.6
BEX-266-10X 10 6.0 23.0 27.0 30.0 82.6 95.6
BEX-266-20X 20 1.5 30.0 37.6 46.0 75.0 89.5