OPTICAL BEAM STEERING AND SHAPING USING FERROELECTRIC LIQUID CRYSTAL SPATIAL LIGHT MODULATORS

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 12406
Amount: $54,884.00
Phase: Phase I
Program: SBIR
Awards Year: 1990
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Displaytech Inc
2200 Central Ave, Boulder, CO, 80301
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Michael J O'callaghan
 (303) 449-8933
Business Contact
Phone: () -
Research Institution
N/A
Abstract
ONE FACTOR LIMITING THE USE OF OPTICS IN APPLICATIONS SUCH AS COMMUNICATIONS, LASER RADAR, AND OPTICAL PROCESSING IS THE LACK OF A SATISFACTORY TECHNOLOGY FOR THE STEERING AND SHAPING OF OPTICAL BEAMS. SIMILAR PROBLEMS HAVE EXISTED FOR RADAR AND RADIO COMMUNICATIONS SYSTEMS. IN THOSE TECHNOLOGIES, HOWEVER, THE PROBLEMS HAVE LARGELY BEEN SOLVED BY THE USE OF PHASED ARRAY ANTENNA TECHNIQUES. DISPLAYTECH HAS DEMONSTRATED A HIGH SPEED ELECTRICALLY ADDRESSED SPATIAL LIGHT MODULATOR (SLM) CONTAINING BOTH A 64X64 ARRAY AND A 1X128 ARRAY WHICH MAY SERVE AS A PROTOTYPE OPTICAL PHASED ARRAY (OPA).THE SLM WAS BUILT BY JOINING FERROELECTRIC LIQUID CRYSTALS (FLCS), A FAST, LOW-VOLTAGE, LOW-POWER ELECTROOPTIC MATERIAL, WITH SILICON INTEGRATED CIRCUITS (ICS). THIS DEVICE HAS A 4.5 KHZ FRAME RATE, THEREFORE IT SHOULD BE CAPABLE OF STEERING A BEAM FROM ONE DIRECTION TO ANOTHER IN A TIME OF 220 US. IN THIS PHASE I WORK WE PROPOSE TO EVALUATE THE PERFORMANCE OF THE CURRENT DISPLAYTECH FLC-ICSLM USED AS AN OPA, IDENTIFY AND DEVELOP ALGORITHMS FOR BEAM FORMING AND STEERING, AND DO PRELIMINARY DESIGN OF A MORE ADVANCED FLC-ICSLM OPTIMIZED FOR BEAM FORMING AND STEERING. THE AIM OF THE PHASE I WORK WILL BE TO PROVIDE A BASIS FOR THE FABRICATION OF MORE ADVANCED DEVICES IN PHASE II. ???????????

* information listed above is at the time of submission.

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