Tunable filter with core mode blocker
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United States of America Patent
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Oct 7, 2003
Grant Date -
Sep 27, 2001
app pub date -
Jan 19, 2001
filing date -
Jun 16, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An optic apparatus includes an optical fiber with a cladding surrounding a core and a core-mode blocker included in at least a portion of an interactive region of the optical fiber. A mode coupler is coupled to the optical fiber and couples a first mode to a different spatial mode in a forward direction of the optical fiber.
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