Variable fiber optic attenuator
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United States of America Patent
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Issued Date -
Sep 18, 2003
app pub date -
Mar 18, 2002
filing date -
Mar 18, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An electronically variable fiber optic attenuator is disclosed for adjustably extracting optical energy from a single, side-polished fiber optic, and therefore attenuating the optical signal being transmitted through the fiber optic. In one aspect, material is removed from a portion of the fiber optic, thereby exposing a surface through which optical energy can be extracted. A slab of material is positioned over the exposed surface of the fiber optic with a liquid overlay disposed therebetween. An actuator applies a force to the slab of material to deform or bend the slab of material into and out of the evanescent field of the fiber optic for extracting the optical energy.
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