Variable laser attenuator

Details Variable laser attenuator Variable laser attenuator

1987-05-29

1988-10-18

Arnold, Bruce Y.

350164, 350166, G02B 528

Patent

active

047782633

ABSTRACT:
The disclosure relates to low loss, high power variable attenuators comprng one or more transmissive and/or reflective multilayer dielectric filters. The attenuator is particularly suitable to use with unpolarized lasers such as excimer lasers. Beam attenuation is a function of beam polarization and the angle of incidence between the beam and the filter and is controlled by adjusting the angle of incidence the beam makes to the filter or filters. Filters are selected in accordance with beam wavelength.

REFERENCES:
patent: 2941444 (1960-06-01), Frykman
patent: 4281245 (1981-07-01), Brogardh et al.
patent: 4530600 (1985-07-01), Lopez

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