Special Patterns

Diffractive Optical Element (DOE)

DOE Item # Description Design Wavelength Pattern Size @ 100 mm Distance (@ Design Wavelength) Pattern Angles (@ Design Wavelength) Optimum Wavelength Range Image
FDE-R236 Solid Line Square 633 nm* Width: 60.2 mm
Height: 60.2 mm
Diagonal: 85 mm
Width: 33.5°
Height: 33.5°
Diagonal: 46°
530 – 650 nm
FDE-R256 Square Grid 51 x 51 Lines 660 nm Width: 39 mm
Height: 39 mm
Diagonal: 55 mm
Line Spacing: 0.77 mm
Width: 22°
Height: 22°
Diagonal: 31°
Angle betw. Lines: 0.44°
530 – 660 nm
FDE-R259 5 Rings 645 nm Width: 51 mm
Line Spacing: 5.1 mm
Width: 29°
Line Spacing: 2.8°
530 – 700 nm
FDE-R269 10 Rings 515 nm Width: 96.2 mm
Line Spacing: 4.8 mm
Width: 51.4°
Line Spacing: 2.6°
488 – 532 nm
FDE-R285 Hexagon 780 nm Width: 13.1 mm Width: 7.5° 520 – 800 nm
FDE-R354 Square Grid 10×10 Lines 658 nm Width: 72.8 mm
Height: 72.8 mm
Diagonal: 102.9 mm
Line Spacing: 8.1 mm
Width: 40.0°
Height: 40.0°
Diagonal: 51.4°
Angle betw. Lines: 4°
620 – 680 nm
FDE-R396 21×11 Hexagonal Array 660 nm* Width: 61.1 mm
Height: 35.3 mm
Diagonal: 70.5 mm
Dot Spacing: 3.5 mm
Width: 34.0°
Height: 20.0°
Diagonal: 38.8°
Angle betw. Dots: 2.0°
600 – 730 nm
FDE-R397 11×10 Hexagonal Array 660 nm* Width: 44.4 mm
Height: 46.2 mm
Diagonal: 64.1 mm
Dot Spacing: 5.1 mm
Width: 25.1°
Height: 26.0°
Diagonal: 35.5°
Angle betw. Dots: 2.9°
600 – 730 nm
FDE-R399 5 Rings 450 nm Width: 51 mm
Line Spacing: 7.3 mm
Width: 40°
Line Spacing: 4.0°
400 – 500 nm

 

*Large-angle pattern that due to its symmetry properties is subject to geometrical distortion, if the DOE is used at laser wavelengths significantly different (Δλ > 50nm) from the design wavelength.

 

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