Laser Beam Attenuator

The 193 nm attenuator can change the output power from about 20 to 85 transmission.

Laser beam attenuator.

The 248 nm attenuator can vary the output power from. The variable attenuators provide highest reproducibility for laser processes. To compensate the beam displacement generated by the dielectric filter a transparent second optic is also employed. The laser attenuator incorporates technology derived from a joint collaboration between edinburgh biosciences ltd and delta optical thin film a s.

In the case of the mai tai femtosecond oscillator the beam diameter is 1 2 mm. In the continuously variable attenuator two polarizers can be set to continuously control the transmitted beam power and independently set its polarization. Laser accessories manual attenuators. Variable attenuators for linearly polarized laser beam 990 0070.

The attenuators are multilayer dielectric coated fused silica optics that allow a variation in the amount of the transmitted energy by controlling the beam s angle of incidence. The laser attenuator allows user control of attenuation by combining the loma with a. The ultrafast version of the attenuator is intended for laser pulses of 100 fs. Parts list the following components are used to.

Continuously variable attenuation and defined polarization for co 2 laser beams a proprietary lasnix design enables a near perfectly transmitting linear polarizer with 40 db rejection. The loma uses a wedge thin film coating design to control the intensity or power of the transmitted laser beam. Our laser beam attenuators provide high resolution intensity control without introducing a gradient in the intensity distribution or a change in the beam propagation direction. For example if the beam diameter is 1 mm the maximum laser power at the attenuator should not exceed 4 w.

Beam attenuators are available for 193 nm arf and 248 nm krf excimer lasers. Laser beam attenuator enhanced version. The stabilization of pulse energies in production processes is their main use. It incorporates a rotating achromatic λ 2 phase waveplate and two high performance broadband 72 thin film polarizers that separate s polarized and p polarized beams in parallel directions.

Laser beam attenuator enhanced version. We also offer laser beam attenuation kits for ultrafast laser pulses. The damage threshold will be reached at 5 6 w which is well above the specified power of 2 4 w at 800 nm. Variable attenuators with ø 17 mm clear aperture composed of two thin film brewster type polarizers and a waveplate mounted into precision opto mechanics.