Optical fiber for broadband optical devices and optical fiber devices using thereof
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United States of America Patent
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Sep 16, 2003
Grant Date -
N/A
app pub date -
Dec 19, 2000
filing date -
Dec 10, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to an optical fiber having a normalized frequency applicable to a broadband optical device, and to a broadband, polarization-independent, low-loss optical fiber device made by using the aforementioned optical fiber. The optical fiber of the present invention has a normalized frequency value V, structural parameters of which including a core radius, a core refractive index and a cladding refractive index are adjusted to minimize the beat dispersion between first and second modes in a predetermined frequency range. Various optical fiber devices may be achieved if the aforementioned optical fiber is used along with acoustic wave generating means and a mode dropper or a mode selective coupler.
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