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 532nm ( 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-Q-Y-A Top-Hat Beam Shaper 4 4.55x1.35 -
1 TH-287-Q-Y-A Top-Hat Beam Shaper 5 0.70x0.36 -
2 TH-248-Q-Y-A Top-Hat Beam Shaper 5 2.80x0.47 -
3 TH-261-Q-Y-A Top-Hat Beam Shaper 5.1 8.09x0.47 -
4 PT-002-Q-Y-A Polychromatic Top-Hat Beam Shaper 7.5 45.53x2.66 -
5 TH-280-Q-Y-A Top-Hat Beam Shaper 8 0.23x0.47 -
6 ST-286-Q-Y-A Stable Top-Hat Beam Shaper 12 0.17x1.35 -
7 ST-261-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x0.89 -
8 ST-283-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x0.90 -
9 ST-262-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x1.05 -
10 ST-284-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x1.05 -
11 ST-263-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x1.20 -
12 ST-285-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x1.20 -
13 ST-264-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x1.34 -
14 TH-265-Q-Y-A Top-Hat Beam Shaper 12 0.18x1.40 -
15 ST-279-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x1.50 -
16 ST-287-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x1.50 -
17 ST-280-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x1.65 -
18 ST-288-Q-Y-A Stable Top-Hat Beam Shaper 12 0.18x1.65 -
19 TH-257-Q-Y-A Top-Hat Beam Shaper 12 0.18x2.69 -
20 TH-256-Q-Y-A Top-Hat Beam Shaper 12 0.20x2.40 -
21 TH-253-Q-Y-A Top-Hat Beam Shaper 12 0.33x1.49 -
22 TH-278-Q-Y-A Top-Hat Beam Shaper 12 0.36x1.65 -
23 TH-254-Q-Y-A Top-Hat Beam Shaper 12 0.41x1.18 -
24 TH-255-Q-Y-A Top-Hat Beam Shaper 12 0.55x0.89 -
25 ST-317-Q-Y-A Stable Top-Hat Beam Shaper 12 0.60x0.18 -
26 ST-318-Q-Y-A Stable Top-Hat Beam Shaper 12 0.75x0.18 -
27 ST-319-Q-Y-A Stable Top-Hat Beam Shaper 12 0.90x0.18 -