Optical waveguides – Optical waveguide sensor
Reexamination Certificate
2006-08-08
2006-08-08
Kim, Ellen E. (Department: 2874)
Optical waveguides
Optical waveguide sensor
C343S748000
Reexamination Certificate
active
07088879
ABSTRACT:
An electromagnetic field sensing apparatus includes an optical modulator, a miniature antenna for sensing the electromagnetic field, a light source, a first optical fiber, an optical detector and a second fiber. The optical modulator can vary the amplitude of a light beam propagating therethrough in response to an electric field intensity. The miniature antenna for sensing the electromagnetic field can sense both the electric field intensity and the magnetic field intensity of an electromagnetic field and apply an electric voltage to the optical modulator in response to the sensed electromagnetic field intensity. The light source is used to generate a light beam, the first optical fiber is used for transmitting the light beam to the modulator, and the second fiber is used for transmitting the light beam from the modulator to the optical detector.
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Ferng Jen-Ming
Huang Mao-Sheng
Liang Wen-Lie
Shay Wen-Tron
Tseng Wen-Jen
Industrial Technology Research Institute
Kim Ellen E.
Seyfrath Shaw LLP
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