Square Shape

 Square Shape

Product name : Square Shape
Description :
The “Top-Hat” or “Flat-Top” beam shapers are diffractive optical elements (DOEs) used to transform a near-gaussian incident laser beam into a uniform-intensity (flat) spot of either round, rectangular, square, line or other shape with sharp edges in a specific work plane.

A uniform spot achieved by the top-hat beam shaper enables equal treatment to a surface, preventing over or under-exposure of specific areas. The beam shaper creates a well defined spot, with a flat-top profile, characterized by a sharp transition region that creates a clear border between treated and untreated areas.

For Multimode laser, we generally recommend to use our Beam homogenizer product line.

Applications:
● Laser materials processing: perforation, welding, cutting, scribing, ablation and drilling
● Biomedical applications
● Laser displays
● Marking and printing

Specification
Beam Mode Single Mode TEM00 with M2<1.5
Element Type Windows
Material Fused Silica
Wavelength 355nm ( Other wavelength is available )
DOE Design 2-level (binary) to 16-level
Minimum Full Angle very small (about 1.5 times Diffraction Limit)
Diffraction Efficiency 86% - 98%
Element Size 11mm to 50.8mm
Coating (Optional) AR/AR Coating

M-Shaper beam profile vs Top Hat profile

Model Description Required Beam Diameter (mm) Full Angle at 1/e2 (mRad) Price(USD) Quantity
0 ST-308-U-Y-A Stable Top-Hat Beam Shaper 1 0.7 -
1 TH-220-U-Y-A Top-Hat Beam Shaper 1.125 2.07 -
2 ST-315-U-Y-A Stable Top-Hat Beam Shaper 1.5 0.46 -
3 ST-291-U-Y-A Stable Top-Hat Beam Shaper 2 0.34 -
4 TH-221-U-Y-A Top-Hat Beam Shaper 2.2 1.07 -
5 TH-271-U-Y-A Top-Hat Beam Shaper 2.2 1.07 -
6 ST-292-U-Y-A Stable Top-Hat Beam Shaper 2.5 0.27 -
7 ST-293-U-Y-A Stable Top-Hat Beam Shaper 3 0.23 -
8 ST-290-U-Y-A Stable Top-Hat Beam Shaper 3.5 0.2 -
9 ST-220-U-Y-A Stable Top-Hat Beam Shaper 4 0.17 -
10 TH-289-U-Y-A Top-Hat Beam Shaper 4 3.49 -
11 ST-229-U-Y-A Stable Top-Hat Beam Shaper 4 4 -
12 ST-225-U-Y-A Stable Top-Hat Beam Shaper 4.5 0.16 -
13 ST-316-U-Y-A Stable Top-Hat Beam Shaper 5 0.14 -
14 TH-277-U-Y-A Top-Hat Beam Shaper 5 0.25 -
15 PT-012-U-Y-A Polychromatic Top-Hat Beam Shaper 5 178.02 -
16 ST-282-U-Y-A Stable Top-Hat Beam Shaper 6 0.11 -
17 ST-323-U-Y-A Stable Top-Hat Beam Shaper 6 0.31 -
18 TH-269-U-Y-A Top-Hat Beam Shaper 6 0.33 -
19 TH-267-U-Y-A Top-Hat Beam Shaper 6 0.44 -
20 TH-260-U-Y-A Top-Hat Beam Shaper 6 0.57 -
21 TH-304-U-Y-A Top-Hat Beam Shaper 6 0.57 -
22 PT-010-U-Y-A Polychromatic Top-Hat Beam Shaper 6 0.57 -
23 TH-303-U-Y-A Top-Hat Beam Shaper 6 1.07 -
24 TH-259-U-Y-A Top-Hat Beam Shaper 6 1.07 -
25 TH-268-U-Y-A Top-Hat Beam Shaper 6 3.6 -
26 ST-234-U-Y-A Stable Top-Hat Beam Shaper 7 0.099 -
27 ST-212-U-Y-A Stable Top-Hat Beam Shaper 7 0.33 -
28 TH-013-U-Y-A Top-Hat Beam Shaper 7 5.84 -
29 TH-279-U-Y-A Top-Hat Beam Shaper 7.5 0.2 -
30 ST-235-U-Y-A Stable Top-Hat Beam Shaper 8 0.087 -
31 PT-020-U-N-A Polychromatic Top-Hat Beam Shaper 8 11.81 -
32 PT-020-U-Y-A Polychromatic Top-Hat Beam Shaper 8 11.81 -
33 PT-015-U-Y-A Polychromatic Top-Hat Beam Shaper 8 27.15 -
34 PT-008-U-Y-A Polychromatic Top-Hat Beam Shaper 8 29.17 -
35 ST-236-U-Y-A Stable Top-Hat Beam Shaper 9 0.076 -
36 ST-238-U-Y-A Stable Top-Hat Beam Shaper 10 0.068 -
37 TH-258-U-N-A Top-Hat Beam Shaper 10 0.16 -
38 TH-258-U-Y-A Top-Hat Beam Shaper 10 0.16 -
39 TH-002-U-Y-A Top-Hat Beam Shaper 12 0.8 -
40 TH-281-U-Y-A Top-Hat Beam Shaper 18 0.22 -
41 TH-291-U-Y-A Top-Hat Beam Shaper 20 0.66 -