Full company details
Delta Optical Thin Film A/S
Fremtidsvej 1
2970 Horsholm
Denmark
Laser Attenuator
Photonics.com
Feb 2018HØRSHOLM, Denmark, Feb. 5, 2018 — A laser attenuator developed by Delta Optical Thin Film AS utilizes an ultrahard-coated, laser optical multilayer attenuator (LOMA) filter.
The laser attenuator enables computer-controlled attenuation of a monochromatic light source from 1 to 99 percent within the wavelength region of ~550 to 1000 nm. It provides the user with safe, repeatable and real-time control over the attenuation by combining the LOMA filter with a linear drive, controlled electronics and dedicated software.
The LOMA filter used in the laser attenuator uses a customized version of the standard linear variable filters. The design of the LOMA filter has a gradual edge between full transmission and full attenuation. The laser beam is transmitted without distortion of the beam profile, and no extra optics are required. No pulse broadening is observed, even with short laser pulses down to 70 fs.
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