Rectangular Shape

 Rectangular Shape

Product name : Rectangular 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 TH-263-W-Y-A Top-Hat Beam Shaper 4 2.27x0.68 -
1 TH-287-W-Y-A Top-Hat Beam Shaper 5 0.35x0.18 -
2 TH-248-W-Y-A Top-Hat Beam Shaper 5 1.40x0.23 -
3 TH-261-W-Y-A Top-Hat Beam Shaper 5.1 4.05x0.23 -
4 TH-280-W-Y-A Top-Hat Beam Shaper 8 0.12x0.23 -
5 ST-286-W-Y-A Stable Top-Hat Beam Shaper 12 0.087x0.68 -
6 ST-261-W-Y-A Stable Top-Hat Beam Shaper 12 0.089x0.45 -
7 ST-287-W-Y-A Stable Top-Hat Beam Shaper 12 0.089x0.75 -
8 ST-283-W-Y-A Stable Top-Hat Beam Shaper 12 0.090x0.45 -
9 ST-262-W-Y-A Stable Top-Hat Beam Shaper 12 0.090x0.53 -
10 ST-284-W-Y-A Stable Top-Hat Beam Shaper 12 0.090x0.53 -
11 ST-263-W-Y-A Stable Top-Hat Beam Shaper 12 0.090x0.60 -
12 ST-285-W-Y-A Stable Top-Hat Beam Shaper 12 0.090x0.60 -
13 ST-279-W-Y-A Stable Top-Hat Beam Shaper 12 0.090x0.75 -
14 ST-288-W-Y-A Stable Top-Hat Beam Shaper 12 0.090x0.82 -
15 TH-257-W-Y-A Top-Hat Beam Shaper 12 0.090x1.35 -
16 ST-264-W-Y-A Stable Top-Hat Beam Shaper 12 0.091x0.67 -
17 ST-280-W-Y-A Stable Top-Hat Beam Shaper 12 0.091x0.82 -
18 TH-265-W-Y-A Top-Hat Beam Shaper 12 0.092x0.70 -
19 TH-256-W-Y-A Top-Hat Beam Shaper 12 0.10x1.20 -
20 TH-253-W-Y-A Top-Hat Beam Shaper 12 0.16x0.74 -
21 TH-278-W-Y-A Top-Hat Beam Shaper 12 0.18x0.82 -
22 TH-254-W-Y-A Top-Hat Beam Shaper 12 0.20x0.59 -
23 TH-255-W-Y-A Top-Hat Beam Shaper 12 0.28x0.44 -
24 ST-317-W-Y-A Stable Top-Hat Beam Shaper 12 0.30x0.092 -
25 ST-318-W-Y-A Stable Top-Hat Beam Shaper 12 0.37x0.092 -
26 ST-319-W-Y-A Stable Top-Hat Beam Shaper 12 0.45x0.091 -