Diffractive Optical Elements (DOE)

Beam Splitter DOE

Beam Splitter DOE

The collimated laser light is incident onto an array (1 x N or M x N) of Beam Splitter DOE to split the input beam into N beams. The N output beams make some separation angle with the Beam Splitter DOE and there exists the desired zero-order beam for an odd number of beams (N). The focusing lenses are often used to achieve the output at the desired working distance.

Material

Fused Silica

Beam Mode

SM or MM

Separation Angle

0.0053°, 0.048°, 1.15°

Total Angle

0.011°, 0.33°, 3.45°

Transmission Efficiency

 ̴ 100%

Overall Efficiency

 ̴  74- 85%

Uniformity (Contrast)

< 1-3%

Zero-Order relative to the incident beam

<0.5-1%

Type

Window

Coating

AR/AR @ 355nm, 1064nm

Part NumberWavelength (nm)Dia (mm)Thickness(mm)Input Beam Dia(mm)No. of Spots
DOE-355-1x335525.43121x3
DOE-355-1x835525.4331x8
DOE-1064-1x4106415.0381x4

Beam Shaper DOE

This set up comprises of a laser source, Beam Shaper DOE, scan system/lens and a working surface. The light passed through the Beam Shaper DOE distributes the Gaussian beam energy into a uniform intensity of either a circular or rectangular top-hat profile.  

Material

Fused Silica

Beam Mode

SM TEM₀₀ with M²<1.5

Transmission Efficiency

 ̴ 100%

Overall Efficiency

 ̴ 90-95%

Shape

Circular, Rectangular

Type

Window

Coating

AR/AR @ 532nm, 1064nm

Part NumberWavelength (nm)F-theta EFL (mm)Dimension (mm)Input Beam Dia(mm)Flat Tope Beam Size (µm)
DOE-SCAN-1064-254C106425416 x 16 x 34.5116
DOE-SCAN-1064-163106416316 x 16 x 35.0118
DOE-SCAN-532-33053233016 x 16 x 33.0120

For the application note, click here.

Enquire Now

You may tick one or more
Scroll to Top