Laser Beam Attenuator

In the case of the mai tai femtosecond oscillator the beam diameter is 1 2 mm.

Laser beam attenuator.

Laser accessories manual attenuators. Parts list the following components are used to. Laser beam attenuator enhanced version. 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.

In the continuously variable attenuator two polarizers can be set to continuously control the transmitted beam power and independently set its polarization. For example if the beam diameter is 1 mm the maximum laser power at the attenuator should not exceed 4 w. Laser beam attenuator enhanced version. The damage threshold will be reached at 5 6 w which is well above the specified power of 2 4 w at 800 nm.

The stabilization of pulse energies in production processes is their main use. Variable attenuators with ø 17 mm clear aperture composed of two thin film brewster type polarizers and a waveplate mounted into precision opto mechanics. Beam attenuators are available for 193 nm arf and 248 nm krf excimer lasers. To compensate the beam displacement generated by the dielectric filter a transparent second optic is also employed.

Clear aperture 15 mm bandwidth up to 20 nm optimization reflection or transmission type configuration λ 2 zo waveplate 1x or 2x thin film polarizers. The 193 nm attenuator can change the output power from about 20 to 85 transmission. Variable attenuators for linearly polarized laser beam 990 0070. The variable attenuators provide highest reproducibility for laser processes.

The laser attenuator incorporates technology derived from a joint collaboration between edinburgh biosciences ltd and delta optical thin film a s. Attenuator design allows to control the intensity between two exit beams over a wide dynamic range. Motorized variable attenuator for femtosecond and nd yag laser pulses 990 0072m divides laser beam into two beams of manually adjustable intensity ratio separated by 68 angle large dynamic range tr. 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 248 nm attenuator can vary the output power from. The ultrafast version of the attenuator is intended for laser pulses of 100 fs. The laser attenuator allows user control of attenuation by combining the loma with a. The loma uses a wedge thin film coating design to control the intensity or power of the transmitted laser beam.