Deep Fiber Optic Vector Sensor Array
Navy SBIR FY2015.1


Sol No.: Navy SBIR FY2015.1
Topic No.: N151-011
Topic Title: Deep Fiber Optic Vector Sensor Array
Proposal No.: N151-011-0906
Firm: VIP Sensors
32242 Paseo Adelanto
Suite C
San Juan Capistrano, California 92675-3610
Contact: Alex Karolys
Phone: (949) 429-3558
Web Site: www.vipsensors.com
Abstract: Vibration Impact and Pressure (VIP) Sensors proposes to develop a compact Fiber Optic Vector Sensor (FOVS) Array to be deployed in an expendable sonobuoy and operated close to the ocean bottom (below critical depth). The FOVS consists of an omnidirectional hydrophone which provides sound's amplitude and a triaxial/biaxial accelerometer that provide the sound's direction. A pair of single mode optical fibers interconnect multiple, miniature, fully passive (no electrical wires) FOVS located up to 6 km below sea level to the sonobuoy's Lower Electronic Module. A broadband light source from the electronic module excites the FOVS array. Each of the optical sensors, built to work at unique ranges of the optical spectrum, modulates the light within its corresponding wavelength range in proportion to the measurand; therefore the light returning from the FOVS contains the information of all the sensors at different preset wavelength slots in a wave division multiplexing (WDM) fashion. The optical sensors are micromachined MOMS (Micro Optical Mechanical System) silicon chips which consume no electrical power. The low power consumption of the electronic module is mainly for the light source and for processing the signals. The MOMS technology allows optimization of the sensor's performance and low cost production rates.
Benefits: The Extrinsic Fabry-Perot Optical sensors and the Detection System technologies will fuel the development of various multimillion dollars product lines. Besides the Deep Fiber Optic Vector Sensor Array, there are multiple applications in the tests and measurement community for derivative products such as the optical accelerometers, hydrophones, pressure sensors, microphone, magnetometers, etc. as well as standalone detection instruments. This basic new technology has the potential significantly improve the measurements systems across many industries that use large number of sensors, such : Flight Testing, Wind Tunnel Testing, Structural Testing, Structural Monitoring, Airplane, Satellite and Ship Monitoring

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