Optical waveguides – Optical waveguide sensor
Reexamination Certificate
2008-04-08
2008-04-08
Healy, Brian M. (Department: 2883)
Optical waveguides
Optical waveguide sensor
C385S015000, C385S024000, C385S088000, C385S092000, C250S227110, C250S227140, C250S2140RC, C250S227280, C398S098000, C398S099000, C398S100000, C398S101000
Reexamination Certificate
active
07356209
ABSTRACT:
An optical power converting apparatus is provided that may be used with remote sensors. A plurality of remote sensors may be coupled to a backbone optical fiber with each sensor having an optical power converter that receives an optical signal from a head end of that fiber. The optical power converters may store electrical energy derived from that optical signal and use that energy to power the remote sensors. The head end's optical signal may also include a clock signal, and each remote sensor may be set to sense a measurable parameter after a given number of clock cycles have been counted. In a further example, each of the optical sensors may be synchronized before counting these clock signals via a synchronization signal from the optical power converter. The remote sensors may individually and separately uplink their sensed data to the head end on the optical fiber. The apparatus may be implemented in a vehicle health management system, for example.
REFERENCES:
patent: 4546249 (1985-10-01), Whitehouse
patent: 4628493 (1986-12-01), Nelson et al.
patent: 4820916 (1989-04-01), Patriquin
patent: 4900947 (1990-02-01), Weiner
patent: 5008662 (1991-04-01), Tokizane et al.
patent: 5223707 (1993-06-01), Bjork
patent: 5239181 (1993-08-01), Sun et al.
patent: 5822200 (1998-10-01), Stasz
patent: 6891007 (2005-05-01), Starzewski et al.
patent: 7263245 (2007-08-01), Delcher et al.
patent: 2006/0202109 (2006-09-01), Delcher et al.
patent: WO/0052835 (2000-09-01), None
Al-Mohanadi, et al., “Optical power and intelligent sensors,” Department of Electronics and Computer Science, pp. 142-146 (1997).
Beck, et al, “Tapping Optical Fiber,” Laser Focus, ( 5 pages) 1987.
“6 Volt Photovoltaic Power Converter, PPC-6ME,” Photonic Power Systems, Inc. (2 pages, 2002, online).
“6 Volt Photovoltaic Power Converter, PPC-6ME,” Photonic Power Systems, Inc. (2 pages, 2003, online).
“16-Bit Optically Powered Data Link System, OPDL-16” Photonic Power Systems, Inc. (2 pages, online, printed Mar. 2005).
“Power over Fiber—Isolated Power Delivery System, PoF” Photonic Power Systems, Inc. (2 pages, online, printed Mar. 2005).
“6 Volt Photovoltaic Power Converter, PPC-6E,” Photonic Power Systems, Inc. (2 pages, 2001, online).
“6 Volt Photovoltaic Power Converter, PPC-6E,” Photonic Power Systems, Inc. (2 pages, 2003, online).
“Fiber Optic Temperature Sensor, OPTS,” Photonic Power Systems, Inc. (2 pages, online, printed Mar. 2005).
Imen, et al. “Laser-fabricated fiber-optic taps,” Optics Letters, 15(17): 950-952 (1990).
Maier, et al. “Fiber Bragg Grating Location by a Slide-Scatter Technique Based on Cladding-Mode Coupling” Applied Optics, 43(16):3310-3314 (2004).
Prucnal, et al, “Low-loss, High-impedance Integrated Fiber-Optic Tap,” Optical Engineering, 29(9): 1136-1142 (1990).
Weiss, et al., “Optically Powered Sensor Technology,” ISA 97 paper (6 pages, 1997).
Zhou, et al. “Fibre Bragg grating sensor interrogation system using a CCD side detection method with superimposed blazed gratings” (Jun. 2004).
U.S. Appl. No. 11/079,668, filed on Mar. 14, 2005 titled: Method and Apparatus for Optically Powering and Multiplexing Distributed Fiber Optic Sensors. Inventor: Ray C. Deleher, et al.
Christian William R.
Delcher Ray C.
Khoshnevisan Mohsen
Boeing Company
Healy Brian M.
Wildman Harrold Allen & Dixon LLP
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