Line Shape

 Line Shape

Product name : Line 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-312-W-Y-A Stable Top-Hat Beam Shaper 1 0.52 -
1 ST-313-W-Y-A Stable Top-Hat Beam Shaper 1.5 0.35 -
2 ST-267-W-Y-A Stable Top-Hat Beam Shaper 2 0.26 -
3 ST-294-W-Y-A Stable Top-Hat Beam Shaper 2.5 0.21 -
4 ST-268-W-Y-A Stable Top-Hat Beam Shaper 3 0.17 -
5 ST-231-W-Y-A Stable Top-Hat Beam Shaper 3 2.17 -
6 ST-232-W-Y-A Stable Top-Hat Beam Shaper 3 4.42 -
7 TH-249-W-Y-A Top-Hat Beam Shaper 3.2 0.18 -
8 ST-295-W-Y-A Stable Top-Hat Beam Shaper 3.5 0.15 -
9 ST-269-W-Y-A Stable Top-Hat Beam Shaper 4 0.13 -
10 ST-296-W-Y-A Stable Top-Hat Beam Shaper 4.5 0.12 -
11 TH-239-W-Y-A Top-Hat Beam Shaper 4.7 0.13 -
12 ST-270-W-Y-A Stable Top-Hat Beam Shaper 5 0.11 -
13 TH-015-W-Y-A Top-Hat Beam Shaper 5.1 3.63 -
14 ST-281-W-Y-A Stable Top-Hat Beam Shaper 6 0.086 -
15 ST-223-W-Y-A Stable Top-Hat Beam Shaper 6 0.75 -
16 ST-277-W-Y-A Stable Top-Hat Beam Shaper 7 0.074 -
17 ST-275-W-Y-A Stable Top-Hat Beam Shaper 8 0.065 -
18 ST-278-W-Y-A Stable Top-Hat Beam Shaper 9 0.058 -
19 ST-276-W-Y-A Stable Top-Hat Beam Shaper 10 0.052 -
20 ST-206-W-Y-A Stable Top-Hat Beam Shaper 10 0.68 -
21 ST-258-W-Y-A Stable Top-Hat Beam Shaper 10 0.97 -
22 TH-292-W-Y-A Top-Hat Beam Shaper 15 1.25 -