Self-Contained, Miniaturized, Robust, High-Speed Fiber Bragg Grating Sensor Interrogator

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-06-C-0048
Agency Tracking Number: N052-115-0009
Amount: $149,999.00
Phase: Phase I
Program: SBIR
Awards Year: 2005
Solicitation Year: 2005
Solicitation Topic Code: N05-115
Solicitation Number: 2005.2
Small Business Information
650 Vaqueros Ave., Suite A, Sunnyvale, CA, 94085
DUNS: 877452664
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Behzad Moslehi
 (408) 328-8648
Business Contact
 Behzad Moslehi
Title: CEO/CTO
Phone: (408) 328-8648
Research Institution
Safety and reliability of ordnance, such as that in solid rocket motors, requires determination of system integrity. To achieve this, a need exists for embedded sensors to provide real-time high-speed indication of system health. Optical Fiber Bragg Grating (FBG) sensors are the most promising types of sensors for dynamic strain measurements due to their light weight, small size, immunity to electromagnetic interference and multiplexibility. However, commercial FBG sensor interrogators are too heavy and large to be deployed in such applications. Based on years of experience and innovations in FBG sensor systems, IFOS proposes a novel miniaturized FBG sensor interrogator with low power consumption to be incorporated into tactical solid fuel rocket motors. It will be capable of interrogating a single optical fiber containing well over five sensors based on commercially available FBGs, under 0.25 pounds in weight and 5 cubic inches in volume, involving no moving parts. The interrogator will operate over the C (extendable to C+L) wavelength band(s), with resolution of 1 pm, dynamic range of 4000+ microstrain per sensor and speed over 5 kHz per sensor. Implementation will be primarily based on well-tested long-lifetime and highly reliable commercially available components.

* Information listed above is at the time of submission. *

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