Mechanically adjustable fiber optic attenuator and method employing same
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United States of America Patent
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Oct 9, 2001
Grant Date -
N/A
app pub date -
Mar 16, 1999
filing date -
Mar 16, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Mechanically adjustable fiber optic attenuators and attenuation systems are disclosed for adjustably extracting optical energy from a 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 cylindrical-shaped preform is selectively positioned into and out of engagement, e.g., physical contact, with the interaction surface of the side-polished fiber for adjustably extracting the optical energy.
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