For all UV-VIS-NIR applications and ATT-INL-EXT setups where light intensity has to be reduced, Avantes offers the inline fiber-optic attenuator (ATT-INL-EXT) and the direct attached fiber-optic attenuator (ATTDA). This device is an iris attenuator which controls light throughput to avoid detector saturation.
The ATT-INL-EXT is coupled between two SMA terminated fiber-optic cables, whereas the ATT-DA can be connected directly to the light source. Both devices consist of two UV/VIS/NIR collimating lenses mounted on either side of an adjustable iris. The attenuation can be set from 0-100% and can be fixed with a set screw.
Product Information
| Wavelength range | 200-2500 nm |
| Attenuation | 0-100% |
| Iris aperture | 0.0-12.0 mm |
| Iris construction | 2 x 5 leaves |
| Fiber connection | 2 SMA-905 connectors, incl. 2 COL-UV/VIS collimating lenses |
| Material | Black anodized aluminum |
| Dimensions | 60 x Ø 25 mm |
| ATT-INL-EXT | In-line fiber-optic attenuator, 0-100%, SMA connectors |