Round Shape

 Round Shape

Product name : Round 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 266nm ( 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-307-W-Y-A Stable Top-Hat Beam Shaper 1 0.52 -
1 ST-314-W-Y-A Stable Top-Hat Beam Shaper 1.5 0.35 -
2 ST-259-W-Y-A Stable Top-Hat Beam Shaper 2 0.26 -
3 ST-271-W-Y-A Stable Top-Hat Beam Shaper 2 0.33 -
4 ST-297-W-Y-A Stable Top-Hat Beam Shaper 2.5 0.21 -
5 ST-260-W-Y-A Stable Top-Hat Beam Shaper 3 0.17 -
6 ST-272-W-Y-A Stable Top-Hat Beam Shaper 3 0.22 -
7 TH-238-W-Y-A Top-Hat Beam Shaper 3 1.5 -
8 TH-228-W-Y-A Top-Hat Beam Shaper 3 2.5 -
9 TH-227-W-Y-A Top-Hat Beam Shaper 3 3.33 -
10 ST-289-W-Y-A Stable Top-Hat Beam Shaper 3.5 0.15 -
11 ST-219-W-Y-A Stable Top-Hat Beam Shaper 4 0.13 -
12 TH-272-W-Y-A Top-Hat Beam Shaper 4 0.58 -
13 TH-286-W-Y-A Top-Hat Beam Shaper 4 0.58 -
14 TH-290-W-Y-A Top-Hat Beam Shaper 4.3 0.79 -
15 ST-298-W-Y-A Stable Top-Hat Beam Shaper 4.5 0.12 -
16 ST-221-W-Y-A Stable Top-Hat Beam Shaper 4.7 0.11 -
17 ST-222-W-Y-A Stable Top-Hat Beam Shaper 5 0.1 -
18 ST-273-W-Y-A Stable Top-Hat Beam Shaper 5 0.13 -
19 TH-276-W-Y-A Top-Hat Beam Shaper 5 0.18 -
20 ST-299-W-Y-A Stable Top-Hat Beam Shaper 5.7 0.092 -
21 ST-302-W-Y-A Stable Top-Hat Beam Shaper 5.7 0.092 -
22 ST-300-W-Y-A Stable Top-Hat Beam Shaper 5.7 0.12 -
23 ST-301-W-Y-A Stable Top-Hat Beam Shaper 5.7 0.12 -
24 TH-284-W-Y-A Top-Hat Beam Shaper 5.95 0.49 -
25 ST-239-W-Y-A Stable Top-Hat Beam Shaper 6 0.086 -
26 TH-215-W-Y-A Top-Hat Beam Shaper 6 0.25 -
27 TH-246-W-Y-A Top-Hat Beam Shaper 6 1.05 -
28 TH-252-W-Y-A Top-Hat Beam Shaper 6 5 -
29 ST-230-W-Y-A Stable Top-Hat Beam Shaper 7 0.072 -
30 ST-303-W-Y-A Stable Top-Hat Beam Shaper 7.5 0.07 -
31 TH-105-W-Y-A Top-Hat Beam Shaper 7.5 0.13 -
32 ST-240-W-Y-A Stable Top-Hat Beam Shaper 8 0.065 -
33 ST-321-W-Y-A Stable Top-Hat Beam Shaper 8.4 0.11 -
34 ST-237-W-Y-A Stable Top-Hat Beam Shaper 9 0.058 -
35 ST-241-W-Y-A Stable Top-Hat Beam Shaper 10 0.052 -
36 ST-207-W-Y-A Stable Top-Hat Beam Shaper 10 0.15 -
37 TH-275-W-Y-A Top-Hat Beam Shaper 10 0.25 -
38 TH-285-W-Y-A Top-Hat Beam Shaper 11 0.18 -
39 ST-320-W-Y-A Stable Top-Hat Beam Shaper 20 0.026 -