Optical waveguides – Optical waveguide sensor
Reexamination Certificate
2006-06-06
2006-06-06
Font, Frank G. (Department: 2883)
Optical waveguides
Optical waveguide sensor
C385S123000, C385S143000, C065S017200, C065S395000, C065S393000, C065S439000, C065S440000
Reexamination Certificate
active
07058243
ABSTRACT:
A simple, economic wet chemical procedure is described for making sol-gel fibers. The sol-gel fibers made from this process are transparent to ultraviolet, visible and near infrared light. Light can be guided in these fibers by using an organic polymer as a fiber cladding. Alternatively, air can be used as a low refractive index medium. The sol-gel fibers have a micro pore structure which allows molecules to diffuse into the fiber core from the surrounding environment. Chemical and biochemical reagents can be doped into the fiber core. The sol-gel fiber can be used as a transducer for constructing an optical fiber sensor. The optical fiber sensor having an active sol-gel fiber core is more sensitive than conventional evanescent wave absorption based optical fiber sensors.
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Jindal Rajeev
Singh Jagdish P.
Tao Shiquan
Winstead Christopher
Font Frank G.
Gray Cary US LLP
Mississippi State University
Mooney Michael P.
Rudnick DLA Piper
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