Blockless fiber optic attenuators and attenuation systems employing dispersion tailored polymers
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United States of America Patent
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Aug 31, 2004
Grant Date -
Nov 14, 2002
app pub date -
Jan 2, 2002
filing date -
Aug 25, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Controllable fiber optic attenuators and attenuation systems are disclosed for controllably extracting optical energy from a fiber optic, and therefore attenuating the optical signal being transmitted through the fiber optic. Material removed from a portion of the fiber optic exposes a side surface through which optical energy can be extracted. The portion of the fiber is suspended between two support points, and a controllable material is formed over the surface for controllably extracting optical energy according to a changeable stimulus applied thereto, which affects the refractive index thereof. In one embodiment, the changeable stimulus is light energy from a light source having a different wavelength from the wavelength of the optical energy of interest.
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