The most common beam expander is Galilean type which usually has one negative input lens and one positive output lens.
The beam expansion ratio for a Gaussian beam depends not only upon the specifications of the beam expender, but also on the laser beam parameters as well as the positions of the optical lenses.
Part No. | Magnification | Input CA (mm) | Output CA (mm) | Dia 1 (mm) | Dia 2 (mm) | L1(mm) | L2 (mm) |
BEX-10.6-1.5 | 1.5 | 13.0 | 16.0 | 20.0 | - | 34.5 | - |
BEX-10.6-2A | 2.0 | 15.0 | 17.0 | 22.0 | - | 35.0 | - |
BEX-10.6-2L | 2.0 | 27.0 | 53.0 | M44*1 | 63.0 | 72.0 | 47.0 |
BEX-10.6-2.5 | 2.5 | 15.0 | 20.0 | 27.0 | - | 55.0 | - |
BEX-10.6-3X | 3.0 | 11.0 | 16.0 | 20.0 | 20.0 | 59.0 | - |
BEX-10.6-3H | 3.0 | 10.0 | 15.0 | 20.0 | 20.0 | 61.0 | - |
BEX-10.6-3C | 3.0 | 13.0 | 20.0 | 20.0 | 28.0 | 110.0 | 60.0 |
BEX-10.6-3B | 3.0 | 12.5 | 20.0 | 20.0 | 28.0 | 59.0 | 29.0 |
BEX-10.6-3A | 3.0 | 10.0 | 15.0 | 20.0 | 20.0 | 61.0 | - |
BEX-10.6-3.3 | 3.3 | 10.0 | 15.0 | 21.0 | 21.0 | 67.0 | - |
BEX-10.6-4C | 4.0 | 12.0 | 23.0 | 20.0 | 30.0 | 135.0 | 90.0 |
BEX-10.6-4A | 4.0 | 20.0 | 30.0 | 20.0 | 31.0 | 67.0 | 48.0 |
BEX-10.6-4 | 4.0 | 10.0 | 20.0 | 20.0 | 28.0 | 67.0 | 46.0 |
BEX-10.6-5 | 5.0 | 12.0 | 23.0 | 20.0 | 30.0 | 72.0 | 47.0 |
BEX-10.6-5A | 5.0 | 12.0 | 28.0 | 20.0 | 36.0 | 70.0 | 45.0 |
BEX-10.6-6A | 6.0 | 10.0 | 28.0 | 20.0 | 36.0 | 75.0 | 40.0 |
BEX-10.6-8 | 8.0 | 13.0 | 26.0 | 20.0 | 36.0 | 120.0 | 75.1 |
BEX-10.6-8A | 8.0 | 10.0 | 30.0 | 20.0 | 36.0 | 73.0 | 45.5 |