Optics: measuring and testing – By light interference – Using fiber or waveguide interferometer
Reexamination Certificate
2006-03-28
2006-03-28
Toatley, Jr., Gregory J. (Department: 2877)
Optics: measuring and testing
By light interference
Using fiber or waveguide interferometer
C356S480000, C356S519000
Reexamination Certificate
active
07019837
ABSTRACT:
A method and apparatus for reducing crosstalk between sensors in an inline Fabry-Perot (FP) sensor array. The inline FP sensor array comprises a plurality of fiber Bragg gratings arranged periodically along an optical fiber. The sensors are formed between each of the Bragg gratings. A light source provides multiplexed pulses as interrogation pulses for the array. The light pulses are applied to one end of the sensor array and a light detector detects reflected pulses. The detected pulses comprise a composite of reflections from all the Bragg gratings along the fiber. The apparatus processes the detected signals using an inverse scattering algorithm to detect an accurate phase response from each of the Bragg sensors while reducing crosstalk from other Bragg sensors within the array. One form of inverse scattering algorithm is a layer-peeling algorithm.
REFERENCES:
patent: 6466706 (2002-10-01), Go et al.
patent: 6522797 (2003-02-01), Siems et al.
patent: 2002/0025097 (2002-02-01), Cooper et al.
patent: 2005/0046860 (2005-03-01), Waagaard et al.
patent: 2005/0047706 (2005-03-01), Waagaard et al.
patent: 2 398 867 (2004-09-01), None
U.K. Search Report, Application No. GB 0418763.9, dated Nov. 22, 2004.
Connolly Patrick J.
Patterson & Sheridan L.L.P.
Toatley , Jr. Gregory J.
Weatherford Lamb, Inc
LandOfFree
Method and apparatus for reducing crosstalk interference in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for reducing crosstalk interference in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reducing crosstalk interference in... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3588703