Fiber optic switch and attenuator
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United States of America Patent
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Nov 17, 1998
Issued Date -
N/A
app pub date -
Oct 6, 1997
filing date -
Jul 9, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fiber optic switch and attenuator (10) has a sealed capsule (12). The sealed capsule (12) contains a first fluid (14), having a first index of refraction and having a first density. The sealed capsule (12) contains a second fluid (16), having a second index of refraction, the second index of refraction being greater than the first index of refraction. The second fluid (16) has a second density that is not equal to the first density. A bobbin (18) is contained in the sealed capsule (12). A fiber optic core (20) is wrapped around the bobbin (18). The fiber optic core (20) has a core index of refraction. The core index of refraction is less than the second index of refraction and greater than the first index of refraction. The fiber optic core (20) has a first end (22) and a second end (24) outside the sealed capsule (12).
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