Diffractive Optical Element (DOE)

Beam Splitter
Beam Shaper

Beam Splitter DOE

Part Number	Wavelength (nm)	Dia (mm)	Thickness (mm)	Separation Angle	No. of Spots
DOE-355-1×3	355	25.4	3	≤ 5˚	1×3
DOE-355-1×5	355	25.4	3	≤ 5˚	1×5
DOE-355-1×6	355	25.4	3	≤ 5˚	1×6
DOE-355-1×8	355	25.4	3	≤ 5˚	1×8
DOE-532-1×3	532	25.4	3	≤ 5˚	1×3
DOE-532-1×5	532	25.4	3	≤ 5˚	1×5
DOE-532-1×6	532	25.4	3	≤ 5˚	1×6
DOE-532-1×8	532	25.4	3	≤ 5˚	1×8
DOE-1064-1×3	1064	25.4	3	≤ 5˚	1×3
DOE-1064-1×5	1064	25.4	3	≤ 5˚	1×5
DOE-1064-1×6	1064	25.4	3	≤ 5˚	1×6
DOE-1064-1×8	1064	25.4	3	≤ 5˚	1×8

Description

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.

Specification
Material: Fused Silica
Beam Mode: SM or MM
Separation Angle: ≤ 5°
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, 532nm, 1064nm

Beam Shaper DOE

Part Number	Wavelength (nm)	F-theta EFL (mm)	Dimension (mm)	Input Beam Dia(mm)	Flat Tope Beam Size (µm)
DOE-SCAN-1064-254C	1064	254	16 x 16 x 3	4.5	116
DOE-SCAN-1064-163	1064	163	16 x 16 x 3	5.0	118
DOE-SCAN-532-330	532	330	16 x 16 x 3	3.0	120

Description

This set up comprises 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.

Specification
Material: Fused Silica
Beam Mode: SM or TEM ₀₀ with M²<1.5
Transmission Efficiency: ̴ 100%
Overall Efficiency: ̴ 90-95%
Shape: Circular, Rectangular
Type: Window
Coating: AR/AR @ 532nm, 1064nm

Diffractive Optical Element (DOE)

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