Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic
Patent
1993-03-01
1994-07-05
Lee, John D.
Optical waveguides
Temporal optical modulation within an optical waveguide
Electro-optic
359245, 385141, G02B 610
Patent
active
053275128
ABSTRACT:
A fully integrated electro-optic page-scanner comprises an optically-transparent waveguide made from an electro-optic polymer formed as a Langmuir-Blodgett film, and a linear array of electrically-addressable, spaced, parallel electrodes for selectively altering the refractive index across pixel-sized portions of the polymeric waveguide. Parallel addressing of the electrodes in accordance with the intensity pattern of a line of pixels to be recorded acts to modulate the phase front of an optical wave propagating within the waveguide in accordance with such line intensity pattern. Schlieren optics, also integrated with the page-scanner, convert the phase-front-modulated wave to an intensity-modulated pixel pattern which can be imaged onto a moving photosensitive recording element to record a two-dimensional (page) of image information. By using an electro-optic polymer formed as a Langmuir-Blodgett film as the waveguide, certain disadvantages of prior art scanning devices are eliminated.
REFERENCES:
patent: 4367925 (1983-01-01), Sprague et al.
patent: 4386827 (1983-06-01), Scifres et al.
patent: 4792208 (1988-12-01), Ulman et al.
patent: 4796971 (1989-01-01), Robello et al.
patent: 4936645 (1990-06-01), Yoon et al.
patent: 4946235 (1990-08-01), Scozzafava et al.
patent: 4948225 (1990-08-01), Rider et al.
patent: 4955977 (1990-09-01), Dao et al.
patent: 4971426 (1990-11-01), Schildkraut et al.
patent: 4974942 (1990-12-01), Gross et al.
patent: 5009483 (1991-04-01), Rockwell, III
patent: 5052771 (1991-10-01), Williams et al.
patent: 5093874 (1992-03-01), Hawkins et al.
patent: 5115336 (1992-05-01), Schildkraut et al.
patent: 5150446 (1992-09-01), Penner et al.
patent: 5247602 (1993-09-01), Penner et al.
Hsiung et al., "Optical second-harmonic generation in Langmuir-Blodgett multilayers of polyacrylates and polyoxazolines with fluorinated side groups," Chemical Physics Letters, 182, No. 1, 88-92 (Jul. 1991).
Armstrong Nancy J.
Penner Thomas L.
Revelli Joseph F.
Williams David J.
Eastman Kodak Company
Lee John D.
Owens Raymond L.
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