Beam Expanders
Source: Sintec Optronics Pte Ltd
The most common type of beam expander is derived from the Galilean telescope, which usually has one negative input lens and one positive output lens
The most common type of beam expander is derived from the Galilean telescope, which usually has one negative input lens and one positive output lens. The input lens presents a virtual beam focus at the output. For low expansion ratios (1.3-20 times), the Galilean telescope is most often employed due to its simplicity, small package size and low cost. The company offers a line of two-element Galilean beam expanders for use with CO2 lasers and Nd:YAG lasers.
CO2 Laser Beam Expanders (10.6µm)
Part code |
Expansion ratio (times) |
Input clear aperture (mm) |
Output clear aperture (mm) |
Diameter (dia) (mm) |
Length (L) (mm) |
Diameter (dia 2) (mm) |
Length (L2) (mm) |
| BEA-CO2-3 | 3 |
12 |
15 |
20 |
50 |
Nd:YAG Laser Beam Expanders (1.06µm)
Part code |
Expansion ratio (times) |
Input clear aperture (mm) |
Output clear aperture (mm) |
Dia. (dia) (mm) |
Length (L) (mm) |
Dia. (dia 2) (mm) |
Length (L2) (mm) |
| BEA-YAG-3 | 3 |
12 |
15 |
20 |
50 |
||
| BEA-YAG-2 | 2 |
12 |
15 |
20 |
45 |
||
| BEA-YAG-1.5 | 1.5 |
12 |
15 |
20 |
40 |
||
| BEA-YAG-3 | 3 |
15 |
35 |
30 |
70 |
42 |
45 |
Sintec Optronics Pte Ltd, Blk 134 Jurong East Street 13 #04-309D, Singapore 600134. Tel: 0065-862-7224; Fax: 0065-793-8060.
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