Microbend optical fiber tapped delay line

Details Microbend optical fiber tapped delay line Microbend optical fiber tapped delay line

G - Physics

02

B

88/97.5

G02B 6/00 (2006.01) G02B 6/28 (2006.01) G02B 6/42 (2006.01)

Patent

CA 1222896

MICROBEND OPTICAL FIBER TAPPED DELAY LINE Abstract of the Disclosure A fiber optic tapped delay line is disclosed in which a number of bends in a single optical fiber are formed to obtain taps of an optical signal traveling in the fiber at each bend. Light removed at the bends is directed to a focusing lens, which focuses the light onto a photodetector acting as a summing device to produce a frequency-filtered output of the light signal traveling in the fiber. The response as a transversal filter is enhanced by weighting the taps either by use of a cylindrical lens, or by selectively masking a portion of light emitted by selected individual taps.

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