Flat-top beam shaping for a Gaussian beam with a specific beam size and good beam quality
A laser beam with a top-hat uniform intensity distribution is desired in many applications. A top-hat beam is also called a flat-top beam or a super-Gaussian beam.
Basically we have 4 different methods to homogenize a laser beam, i.e.
(1) flat-top beam shaping for a Gaussian beam with a specific beam size and good beam quality
(2) Beam homogenizing tolerant to incident beam size and beam quality
(3) Diffuser, tolerant to incident beam size and beam quality
(4) beam homogenizing for incoherent beams with microlenses
The products that you are reading were designed and fabricated based on our first method of homogenizing an incident laser beam. The diffractive optical elements (DOEs) designed based on this approach are very sensitive to the conditions of usage:
1. The incident laser beam should be of Gaussian distribution.
2. The DOE has to be placed at the position of the laser beam's
waist.
3. The incident laser spot on the DOE should be in agreement
with the designed value (2 mm in 1/e^2 diameter).
4. The lateral alignment should be accurate.
If all these four conditions are satisfied, the DOEs' performance will be good, otherwise we cannot obtain desired flat-top output beam. By contrast, the DOEs designed based on the second approach are very tolerant to incident beam size and beam quality, without lateral or longitudinal alignment requirements.
Product nomination for diffractive top-hat beam-shaping elements
Our standard top-hat beam shaping elements include Gaussian beam to rectangular flat-top beam and Gaussian beam to circular flat-top beam.
Gaussian beam to rectangular flat-top beam:
2080
nm wavelength Gaussian beam to circular flat-top
beam（13 models available. Please
contact us for details）
|
Item No |
DOE dimensions |
Image size |
Wavelength |
Working distance |
Delivery time |
|
TH-REC-8-2-INF-20mrad-1064 |
8 mm | 20 mrad | 1064 nm | Infinite | |
|
TH-REC-8-2-200-4x4-1064 |
8 mm | 4x4 mm | 1064 nm | 200 mm | |
|
TH-REC-8-2.5-INF-20mrad-1064 |
8 mm | 20 mrad | 1064 nm | Infinite | |
|
TH-REC-8-2.5-200-4x4-1064 |
8 mm | 4x4 mm | 1064 nm | 200 mm | |
|
TH-REC-8-3-INF-20mrad-1064 |
8 mm | 20 mrad | 1064 nm | Infinite | |
|
TH-REC-8-3-200-4x4-1064 |
8 mm | 4x4 mm | 1064 nm | 200 mm | |
|
TH-REC-8-3.5-INF-20mrad-1064 |
8 mm | 20 mrad | 1064 nm | Infinite | |
|
TH-REC-8-3.5-200-4x4-1064 |
8 mm | 4x4 mm | 1064 nm | 200 mm | |
|
TH-REC-10-4-INF-20mrad-1064 |
8 mm | 20 mrad | 1064 nm | Infinite | |
|
TH-REC-10-4-200-4x4-1064 |
8 mm | 4x4 mm | 1064 nm | 200 mm | |
| TH-REC-20-8-INF-2.9 mrad-1064 | 20 mm | 2.9 mrad | 1064 nm | Infinite | |
| TH-REC-20-8-1700-5x5-1064 | 20 mm | 5x5 mm | 1064 nm | 1700 mm | |
|
TH-REC-8-3.5-100-0.5x0.5-532 |
8 mm |
0.5x0.5 mm |
532 nm |
100 mm |
|
|
TH-REC-8-3-200-4x4-532 |
8 mm |
4x4 mm |
532 nm |
200 mm | |
|
TH-REC-8-3.5-200-0.5x0.5-532 |
8 mm |
0.5x0.5 mm |
532 nm |
200 mm | |
|
TH-REC-8-3.5-200-1x1-532 |
8 mm |
1x1 mm |
532 nm |
200 mm | |
|
TH-REC-8-3.5-INF-5mrad-532 |
8 mm |
5 mrad |
532 nm |
Infinite |
|
|
TH-REC-8-3.5-100-4.0x4.0-532 |
8 mm |
4.0 x 4.0 mm |
532 nm |
100 mm |
|
|
TH-REC-8-3.5-200-4.0x4.0-532 |
8 mm |
4.0 x 4.0 mm |
532 nm |
200 mm |
|
|
TH-REC-8-3.5-INF-40mrad-532 |
8 mm |
40 mrad |
532 nm |
Infinite |
|
|
TH-REC-10-4.0--100-0.5x0.5-532 |
10 mm |
0.5x0.5 mm |
532 nm |
100 mm |
|
|
TH-REC-10-4.0-INF-5mrad-532 |
10 mm |
5 mrad |
532 nm |
Infinite |
|
|
TH-REC-10-4.0-100-6.0x6.0-532 |
10 mm |
6.0x6.0 mm |
532 nm |
100 mm |
|
|
TH-REC-10-4.0--INF-59.9mrad-532 |
10 mm |
59.9 mrad |
532 nm |
Infinite |
|
|
TH-REC-12-5.0-100-0.2x0.2-532 |
12 mm |
0.2x0.2 mm |
532 nm |
100 mm |
|
|
TH-REC-12-5.0--INF-20mrad-532 |
12 mm |
2 mrad |
532 nm |
Infinite |
|
|
TH-REC-12-5.0-100-0.5x0.5-532 |
12 mm |
0.5x0.5 mm |
532 nm |
100 mm |
|
|
TH-REC-12-5.0-INF-5mrad-532 |
12 mm |
5 mrad |
532 nm |
Infinite |
|
|
TH-REC-12-5.0-200-8.0x8.0-532 |
12 mm |
8.0x8.0 mm |
532 nm |
200 mm |
|
|
TH-REC-12-5.0-INF-40mrad-532 |
12 mm |
40.0 mrad |
532 nm |
Infinite |
|
|
TH-REC-20-8.0-200-12x12-532 |
20 mm |
12x12 mm |
532 nm |
200 mm |
|
|
TH-REC-20-8.0-INF-99.7mrad-532 |
20 mm |
99.7 mrad |
532 nm |
Infinite |
Gaussian beam to circular flat-top beam:
|
Item No |
DOE dimensions |
Image size |
Wavelength |
Working distance |
Delivery time |
|
TH-RD-8-3.5-100-0.05-532 |
8 mm |
0.05 mm |
532 nm |
100 mm |
|
|
TH-RD-8-3.5-INF-0.5mrad-532 |
8 mm |
0.5 mrad |
532 nm |
infinite |
|
|
TH-RD-8-3.5-100-0.1-532 |
8 mm |
0.1 mm |
532 nm | 100 mm | |
|
TH-RD-8-3.5--INF-1mrad-532 |
8 mm |
1 mrad |
532 nm |
infinite |
|
|
TH-RD-8-3.5-100-0.2-532 |
8 mm |
0.2 mm |
532 nm | 100 mm | |
|
TH-RD-8-3.5-INF-2mrad-532 |
8 mm |
2 mrad |
532 nm |
infinite |
|
|
TH-RD-8-3.5-100-0.5-532 |
8 mm |
0.5 mm |
532 nm | 100 mm | |
|
TH-RD-8-3.5-INF-5mrad-532 |
8 mm |
5 mrad |
532 nm |
infinite |
|
|
TH-RD-10-4.0-100-0.05-532 |
10 mm |
0.05 mm |
532 nm | 100 mm | |
|
TH-RD-10-4.0-INF-0.5mrad-532 |
10 mm |
0.5 mrad |
532 nm |
infinite |
|
|
TH-RD-10-4.0-100-0.1-532 |
10 mm |
0.1 mm |
532 nm | 100 mm | |
|
TH-RD-10-4.0-INF-1mrad-532 |
10 mm |
1 mrad |
532 nm |
infinite |
|
|
TH-RD-10-4.0-100-0.2-532 |
10 mm |
0.2 mm |
532 nm | 100 mm | |
|
TH-RD-10-4.0-INF-2mrad-532 |
10 mm |
2 mrad |
532 nm |
infinite |
|
|
TH-RD-10-4.0-100-0.5-532 |
10 mm |
0.5 mm |
532 nm | 100 mm | |
|
TH-RD-10-4.0-INF-5mrad-532 |
10 mm |
5 mrad |
532 nm |
infinite |
|
|
TH-RD-12-5.0-100-0.05-532 |
12 mm |
0.05 mm |
532 nm | 100 mm | |
|
TH-RD-12-5.0-INF-0.5mrad-532 |
12 mm |
0.5 mrad |
532 nm |
infinite |
|
|
TH-RD-12-5.0-100-0.1-532 |
12 mm |
0.1 mm |
532 nm | 100 mm | |
|
TH-RD-12-5.0-INF-1mrad-532 |
12 mm |
1 mrad |
532 nm |
infinite |
|
|
TH-RD-12-5.0-100-0.2-532 |
12 mm |
0.2 mm |
532 nm | 100 mm | |
|
TH-RD-12-5.0-INF-2mrad-532 |
12 mm |
2 mrad |
532 nm |
infinite |
|
|
TH-RD-12-5.0-100-0.5-532 |
12 mm |
0.5 mm |
532 nm | 100 mm | |
|
TH-RD-12-5.0-INF-5mrad-532 |
12 mm |
5 mrad |
532 nm |
infinite |
|
|
13 models available. Please contact us for details
|
7-18 mm |
0.5 - 2 mm | 2080 nm |
300 mm |
In stock |