Fiber based wavelength de-multiplexing system
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United States of America Patent
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Jul 8, 2003
Grant Date -
Apr 10, 2003
app pub date -
Dec 28, 2001
filing date -
Oct 10, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A de-multiplexing system for optical signals including an optical fiber attached to an optical fiber taper is provided. Optical signals are transmitted through the optical fiber to the optical fiber taper. An etched diffraction grating located at the end of the optical fiber taper de-multiplexes optical signals. Bi-directional de-multiplexing can be accomplished by providing optical fiber tapers with etched diffraction gratings at both ends of the optical transmission fiber. A GRIN lens can be provided for focusing the de-multiplexed signals onto specific optical detectors.
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