SBIR/STTR Research Award

FIBER OPTIC MICROPHONE DEVELOPMENT

Award identifier 31361d548a379621735993f24f7536f0400dd61b2d39b8dbfbfa3f5e9f7ec425Awarding agency Department of Defense · Air Force

Award amount

$389,614

Program and phase

SBIR · Phase II

Award year

1991

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Award details

Awarding agency
Department of Defense
Branch
Air Force
Recipient company
Micro Optics Technologies, Inc
Proposal award date
Not reported
Contract end date
Not reported
UEI
Not reported
Solicitation number
Not reported
Topic code
Not reported

Research abstract

COMMUNICATION SYSTEMS THAT USE ELECTRO-ACOUSTICAL TRANSDUCERS ARE SUSCEPTIBLE TO DISTORTION OR INTERRUPTION BY ELECTROMAGNETIC INTERFERENCE, ELECTROMAGNETIC PULSES AND RADIO FREQUENCY INTERFERENCE.SHIELDING THE WIRE CARRYING THE ELECTRICAL SIGNAL TO PREVENT INTERFERENCE IS NOT ALWAYS EFFECTIVE OR DESIRABLE. THE OBJECTIVE OF THE WORK PROPOSED HERE IS THE DEVELOPMENT OF A FIBER OPTIC MICROPHONE. THE TRANSDUCER OF THE MICROPHONE WOULD CONVERT ACOUSTIC SIGNALS DIRECTLY TO A MODULATING LIGHT SIGNAL WHICH WOULD BE TRANSMITTED THROUGH A FIBER OPTIC CABLE. THIS SIGNAL WOULD BE IMMUNE TO ANY ELECTROMAGNETIC INTERFERENCE. THIS WORK WILL DESIGN A TRANSDUCER THAT CAN BE PRODUCED BY MICRO-MACHINING OF SILICON. THE DIFFERENT GEOMETRIES POSSIBLE FOR THE TRANSDUCER WILL BE INVESTIGATED AND THE MOST PROMISING SHAPE WILL BE CONSTRUCTED. A MICROPHONE USING THIS TRANSDUCER WILL BE ASSEMBLED AND TESTED.

Technology keywords

Not reported

Agency intelligence

Department of Defense

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