Optical: systems and elements – Optical modulator – Light wave temporal modulation
Patent
1998-11-30
2000-10-31
Epps, Georgia
Optical: systems and elements
Optical modulator
Light wave temporal modulation
359298, 359572, 359573, 359578, 359579, G02B 518, G02B 2608
Patent
active
061411396
ABSTRACT:
A method of fabricating a modulator for modulating an incident beam of light includes a substrate having a cavity formed therein and a plurality of spaced-apart deformable elements formed in the cavity. The deformable elements each has a base layer, a poled magnetic layer formed in the base layer and a first light reflection layer deposited on the magnetic layer for reflecting an incident beam of light. Between adjacent deformable elements on the base of the cavity is arranged a second light reflection layer. A conductive element formed in the substrate electro-magnetically energizes the deformable elements to deflect in the cavity. Incident light passing through each one of the first light reflection layers is caused to destructively interfere with light reflected from the second light reflection layers thereby causing modulation of the incident light.
REFERENCES:
patent: 5311360 (1994-05-01), Bloom et al.
patent: 5677783 (1997-10-01), Bloom et al.
patent: 5991079 (1999-11-01), Furlani et al.
R. H. Victora, C. F. Brucker, and F. E. Spada, Journal of Magnetism and Magnetic Materials 97 (1991), pp. 343-352.
Chatterjee Dilip K.
Furlani Edward P.
Ghosh Syamal K.
Bailey, Sr. Clyde E.
Eastman Kodak Company
Epps Georgia
Lester Evelyn A.
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