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USH1586H
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Methods of and systems for encoding and decoding a beam of light utilizing nonlinear organic signal processors
Assignee: United States Department of the Army
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Filing: 1990-01-30
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Granted: 1996-09-03
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Expires: 2010-01-30
Abstract
Abstract An audio optical processor unit employing a nonlinear organic optical element which may be in the form of a nonlinear polymer, a nonlinear organic material or a mixture of liquid crystal materials or polymers. The nonlinear organic optical element is interfaced by a piezo-electric crystal which encodes a laser beam passing through the optical element by inducing changes in the index of refraction or the changes in voltage potential across the polymer or non-linear organic material. The resulting encoded output is detected in a conventional manner by a photodetector array.
Inventors
- 👤 William G. Fellows
- 👤 Lester Weinberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:10
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/29; G02F1/33; G02F2202/00; G02F2202/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
41 words
A method of encoding a beam of light comprising the steps of passing coherent, monochromatic light through an optical body of nonlinear organic material while controlling the diffraction of said light so as to produce an encoded or decoded optical output.
Claim 2
Independent Claim
41 words
A method of encoding a beam of light comprising the steps of passing coherent, monochromatic light through an optical body of nonlinear organic material while controlling the diffraction of said light so as to produce an encoded or decoded optical output.
Claim 3
Dependent Claim
30 words
The method of claim 1, wherein the nonlinear organic material is a material selected from the group consisting of: Cyanine dyes; 2-methyl-4-nitroaniline (MNA); Indanchrones; Stilbenes; Pyridine N-oxides; 2-(p-dimethylaminophenyl)-6-(p-nitrophenyl)-benzo(1,2-d:4,5-d')bis-thiazole (DNBT); 2-(4-(dimethyl-amino)phenyl)-5-nitrobenzoxazole.
Claim 4
Dependent Claim
38 words
The method of claim 1, wherein the diffraction of said light is caused by periodic changes in the refractive index of said nonlinear organic material which result from the transmission of acoustic waves generated by a piezo-electric crystal.
Claim 5
Independent Claim
84 words
A method of encoding a beam of light comprising the steps of passing coherent, monochromatic light through an optical body of nonlinear organic material while controlling the diffraction of said light so as to produce an encoded or decoded optical output, wherein the diffraction of said light is caused by periodic changes in the refractive index of said nonlinear organic material which result from the transmission of acoustic waves generated by a piezo-electric crystal, and the piezo-electric crystal interfaces directly with the nonlinear body.
Claim 6
Independent Claim
84 words
A method of encoding a beam of light comprising the steps of passing coherent, monochromatic light through an optical body of nonlinear organic material while controlling the diffraction of said light so as to produce an encoded or decoded optical output, wherein the diffraction of said light is caused by periodic changes in the refractive index of said nonlinear organic material which result from the transmission of acoustic waves generated by a piezo-electric crystal, and the piezo-electric crystal interfaces directly with the nonlinear body.
Claim 7
Dependent Claim
26 words
The method of claim 4, wherein the beam of light is modulated by an audio input applied through the nonlinear organic material via the piezo-electric crystal.
Claim 8
Dependent Claim
17 words
The process of claim 5, wherein the piezo-electric crystal is controlled by a digital input control signal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-09-03 | 2000-03-04 | 2000-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-09-03 | 2004-03-04 | 2004-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-09-03 | 2008-03-04 | 2008-09-03 | $7700.00 | Window Closed / Lapsed |