Optical waveguides – Optical waveguide sensor
Reexamination Certificate
2007-01-03
2010-11-23
Petkovsek, Daniel (Department: 2874)
Optical waveguides
Optical waveguide sensor
C385S013000, C356S243800, C398S033000, C398S082000
Reexamination Certificate
active
07840101
ABSTRACT:
Systems and methods for sensing properties of a workpiece and embedding a photonic sensor in metal are disclosed herein. In some embodiments, systems for sensing properties of a workpiece include an optical input, a photonic device, an optical detector, and a digital processing device. The optical input provides an optical signal at an output of the optical input. The photonic device is coupled to the workpiece and to the output of the optical input. The photonic device generates an output signal in response to the optical signal, wherein at least one of an intensity of the output signal and a wavelength of the output signal depends on at least one of thermal characteristics and mechanical characteristics of the workpiece. The optical detector receives the output signal from the photonic device and is configured to generate a corresponding electronic signal. The digital processing device is coupled to the optical detector and determines at least one of the thermal characteristics and mechanical the characteristics of the workpiece based on the electronic signal.
REFERENCES:
patent: 5424834 (1995-06-01), Akedo et al.
patent: 6009115 (1999-12-01), Ho
patent: 6665476 (2003-12-01), Braun et al.
patent: 7492979 (2009-02-01), Wang et al.
patent: 7572665 (2009-08-01), Datta et al.
patent: 2001/0043629 (2001-11-01), Sun et al.
patent: 2005/0058415 (2005-03-01), Lee et al.
patent: 2005/0286602 (2005-12-01), Gunn et al.
patent: 2006/0067605 (2006-03-01), Mirkarimi et al.
patent: 2007/0036479 (2007-02-01), Beausoleil
Karle, T.J. et al. “Observation of Pulse Compression in Photonic Crystal Coupled Cavity Waveguides”. Journal of Lightwave Technology, vol. 22, No. 2, Feb. 2004. pp. 514-519.
International Search Report and Written Opinion issued for corresponding International Patent Application No. PCT/US2007/000133.
Chatterjee Rohit
Li Xiaochun
Wong Chee Wei
Zhang Xugang
Petkovsek Daniel
The Trustees of Columbia University in the City of New York
LandOfFree
Systems and methods for sensing properties of a workpiece... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Systems and methods for sensing properties of a workpiece..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Systems and methods for sensing properties of a workpiece... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4180653