Broadband variable optical attenuator

Details Broadband variable optical attenuator Broadband variable optical attenuator

1980-10-23

1983-08-16

Punter, William H.

350173, 350395, 350407, G02B 530, G02F 101, B02B 2714

Patent

active

043988067

ABSTRACT:
An optical variable attenuator includes first, second, third and fourth wedge shaped plates, each of said plates having two surfaces defined by an angle of convergence, the first and second plates being supported with two of said surfaces of said first and second plates being in spaced parallel alignment and with the angle of convergence of the two plates being in opposite directions, and the third and fourth plates being supported with two of said surfaces of said third and fourth plates being in spaced parallel alignment and with the angle of convergence of the third and fourth plates.

REFERENCES:
patent: 3806257 (1974-04-01), Amos
Shurcliff, W. A., "Polarized Light", Harvard U. Press, 1962, pp. 78-84.
Evans et al., "Laser Beam Power Control Device", Jr. Sci. Instr., (Jr. of Phys. E), 1968, vol. 1, pp. 856-858.
Sporton, T. M., "Optical Transmission Through Windows Set Near the Brewster Angle", Jr. Sci. Instr., 1967, vol. 44, pp. 720-724.
Harrick, N. J., "A Continuously Variable Optical Beam Splitter & Intensity Controller", App. Optics, 11-1963, pp. 1203-1204.

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