

FM 100 focus monitor
The FM 100 focus monitor is a compact beam profiler system with our standard ML3743 camera, ML1201 beamlux II advanced software and high power attenuators. Up to 100 W laser beams and laser spots can be evaluated with high accuracy.
Neutral density filters can be exchanged easily to reduce the power to a suitable level for the CCD camera (option filter wheel).
Near field lenses with magnifications of 5x, 10x, 20x for Nd Yag and for Excimer lasers are available.

Features
- for high power laser
- for high power density laser spots
- compact unit
- exchangeable neutral density filters
- near field lenses with high magnifications and high numerical aperture
Specifications
| laser power | up to 100 W |
| power density | < 2 GW/cm² (20 ns, 1064 nm) |
| power density with NFL | up to 500 MW/cm² (20 ns, 1064 nm) |
| beam diameter | < 6 mm |
| option: beam expander for 30 mm laser beam | |
| min. spot size | 1 µm |
| max. numerical aperture | 0.4 |
| wavelength range | 320 – 1100 nm (depending on near field lens) |
| dimensions | 149x127x60 mm² |