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1D and 2D Diffractive Beam Splitters

Beam splitting turns a single laser beam or LED beam to multiple beamlets. These beamlets may be arranged regularly or irregularly. Beam splitters may also be referred to as fan-out elements, spots array generators, multiple beam gratings, etc

Beam splitting is desired in many applications, including laser materials processing, optical communications, optical image processing, microelectronics, microscopy. Specific examples are % simultaneous laser drilling (perforating) of multi-holes, fiber coupling, etc. We can split a single beam into up to a million highly uniform beams.

diffractive beam splitting, fan-out elements

Beam splitting is easy to describe, but it can be difficult to achieve, particularly if the diffraction efficiency and uniformity are expected to be high. There are several approaches to design and accomplish this task, e.g. lenslet arrays, rectangular profile periodic gratings, Dammann gratings and more recently circular Dammann gratings, nonperiodic binary or multilayer diffractive optical elements. We use different approaches for different requirements.

Beam splitter model illustration: 

Beam splitter model illustration

We provide the following standard Beam Splitting DOEs.

1-D beam splitting / Fan-out:

1-D beam splitting, fan-out element

Item No DOE receiving size Description Separation angle Wavelength
BS-1D-8-1x13-4DEG-650

8x8

mm2

1x13

a4 DEG

b48DEG

650 nm
Added on 17 Oct 2014
BS-1D-25-1x9-0.64DEG-532 3x3 mm2
to
25x25 mm2

1x9

a600 urad

b4.8 mrad

532 nm
Added on 16 June 2014

BS-1D-8-1x9-600urad-532

8x8 mm2

1x9

a600 urad

b4.8 mrad

532 nm
Added on 16 Oct 2013

BS-1D-8-1x9-8deg-532

8x8 mm2

1x9

a8 deg

b64 deg

532 nm
Added on 16
Otc 2013

BS-1D-8-1x16-2mrad-1064

8x8 mm2

1x16

a2 mrad

b30 mrad

1064 nm
Added on 18 Sep 2013

BS-1D-8-1x50-3mrad-1064

8x8 mm2

1x50

a3 mrad

b147 mrad

1064 nm

BS-1D-55-1x100-120urad-532

53x53 mm2

1x100

a120 urad

b12 mrad

532 nm  

BS-1D-8-1x3-40DEG-808

8x8 mm2

1x3

a40 DEG

b80 DEG

808 nm  

BS-1D-8-1x24-0.17DEG-650

7.5x7.5

mm2

1x24

a0.17 DEG

b4.0 DEG

650 nm  

BS-1D-8-1x25-0.17DEG-650

7.5x7.5

mm2

1x25

a0.17 DEG

b4.2 DEG

650 nm  

BS1D1-14

6.5 x 6.5 mm

1 x 11

a=19.84 mrad,

b=198.36 mrad

650 nm  

BS1D1-15

6.5 x 6.5 mm

1 x 21

a=9.92 mrad

b=198.36 mrad

650 nm  

BS1D1-16

3.25 x 3.25 mm

1 x 21

a=9.52 mrad

b=190.43 mrad

650 nm  

2-D beam splitting / Fan-out:

2-D beam splitting, fan-out element

Item No DOE receiving size Description Separation angle Wavelength  
BS-2D-7-9x9-11.8mrad-980 35x35 mm 9x9 11.8 mrad 980 nm Added on 26 Sept 2016. Internal Ref. No 114/116
BS-2D-7-9x9-4.01deg-830 8x8 mm 9x9 4.01 deg 830 nm Added on 26 Sept 2016. Internal Ref. No 114/116
BS-2D-50-9x9-10mrad-1064 50 mm 9x9 10 mrad 1064 nm Added on 26 Sept 2016. Internal Ref. No 101
BS-2D-8-10x10-532 8 mm 10x10 0.38 DEG 532 nm  
BS-2D-18-4x4-1064 18x18 mm 4x4 0.15 mrad 1064 nm  
BS-2D-8-16x16-1p18mrad-775 8 mm 16x16 1.18 mrad 775 nm Added on 12 Aug 2015
BS-2D-4-32x32-0.18DEG-650 4x4 mm 32x32 0.18 DEG 650 nm Added on 29 April 2014
BS-2D-4-32x32-0.36DEG-650 4x4 mm 32x32 0.36 DEG 650 nm Added on 29 April 2014
BS-2D-4-64x64-0.36DEG-650 4x4 mm 64x64 0.36 DEG 650 nm
BS-2D-4-64x64-0.73DEG-650 4x4 mm 64x64 0.73 DEG 650 nm Added on 29 April 2014
BS-2D-4-128x128-0.18DEG-650 4x4 mm 128x128 0.18 DEG 650 nm
BS-2D-4-128x128-0.36DEG-650 4x4 mm 128x128 0.36 DEG 650 nm

Top-hat beam shaping elements

Image generation (general beam shaping) elements

Beam splitting elements

Beam homogenizer (diffuser)

Microlens array

Phase gratings for optical linear encoders

DOEs for motion sensing and gesture recognition systems

Laser keyboard by a diffractive optical element

DOEs and other surface microstructures replication

Fused silica, quartz and sapphire wafers

TIFF / BMP to GDSII conversion

Company and products brochure (PDFUpdated on May 12 2014

Company and products brochure (PDFUpdated on July 4 2013

Company and products brochure (PDFUpdated on July 4 2012